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445370940 = 223357591997
BaseRepresentation
bin11010100010111…
…101001000111100
31011001001012002000
4122202331020330
51403003332230
6112105502300
714015406360
oct3242751074
91131035060
10445370940
11209444863
121051a1990
1371368a01
14432152a0
1529176b60
hex1a8bd23c

445370940 has 192 divisors, whose sum is σ = 1611187200. Its totient is φ = 100023552.

The previous prime is 445370929. The next prime is 445370957. The reversal of 445370940 is 49073544.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 445370895 and 445370904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 222022 + ... + 224018.

It is an arithmetic number, because the mean of its divisors is an integer number (8391600).

Almost surely, 2445370940 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 445370940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (805593600).

445370940 is an abundant number, since it is smaller than the sum of its proper divisors (1165816260).

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

445370940 is a wasteful number, since it uses less digits than its factorization.

445370940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2081 (or 2073 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 445370940 is about 21103.8133994783. The cubic root of 445370940 is about 763.6727466431.

The spelling of 445370940 in words is "four hundred forty-five million, three hundred seventy thousand, nine hundred forty".