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368228440 = 23537594217
BaseRepresentation
bin10101111100101…
…011100001011000
3221122212221110101
4111330223201120
51223231302230
6100312225144
712060614206
oct2574534130
9848787411
10368228440
11179945528
12a339b1b4
135b399168
1436c94076
15224d9aca
hex15f2b858

368228440 has 64 divisors (see below), whose sum is σ = 865533600. Its totient is φ = 140848128.

The previous prime is 368228431. The next prime is 368228473. The reversal of 368228440 is 44822863.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a self number, because there is not a number n which added to its sum of digits gives 368228440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85212 + ... + 89428.

Almost surely, 2368228440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 368228440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (432766800).

368228440 is an abundant number, since it is smaller than the sum of its proper divisors (497305160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

368228440 is a wasteful number, since it uses less digits than its factorization.

368228440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4324 (or 4320 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 37.

The square root of 368228440 is about 19189.2792986084. The cubic root of 368228440 is about 716.7578245922.

The spelling of 368228440 in words is "three hundred sixty-eight million, two hundred twenty-eight thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 37 40 59 74 118 148 185 236 295 296 370 472 590 740 1180 1480 2183 2360 4217 4366 8434 8732 10915 16868 17464 21085 21830 33736 42170 43660 84340 87320 156029 168680 248803 312058 497606 624116 780145 995212 1244015 1248232 1560290 1990424 2488030 3120580 4976060 6241160 9205711 9952120 18411422 36822844 46028555 73645688 92057110 184114220 368228440