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40432230 = 2335149749
BaseRepresentation
bin1001101000111…
…1001001100110
32211002011121000
42122033021212
540322312410
64002334130
71000445136
oct232171146
984064530
1040432230
1120906373
121165a346
1384b84c7
145526ac6
153839dc0
hex268f266

40432230 has 32 divisors (see below), whose sum is σ = 107820000. Its totient is φ = 10781856.

The previous prime is 40432211. The next prime is 40432237. The reversal of 40432230 is 3223404.

40432230 is a `hidden beast` number, since 4 + 0 + 432 + 230 = 666.

40432230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40432237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74605 + ... + 75144.

It is an arithmetic number, because the mean of its divisors is an integer number (3369375).

Almost surely, 240432230 is an apocalyptic number.

40432230 is an abundant number, since it is smaller than the sum of its proper divisors (67387770).

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

40432230 is a wasteful number, since it uses less digits than its factorization.

40432230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149765 (or 149759 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 40432230 is about 6358.6342873293. The cubic root of 40432230 is about 343.2226169750. Note that the first 3 decimals are identical.

Adding to 40432230 its reverse (3223404), we get a palindrome (43655634).

The spelling of 40432230 in words is "forty million, four hundred thirty-two thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 90 135 270 149749 299498 449247 748745 898494 1347741 1497490 2246235 2695482 4043223 4492470 6738705 8086446 13477410 20216115 40432230