42905232 has 30 divisors (see below), whose sum is σ = 120075462. Its totient is φ = 14301696.

The previous prime is 42905227. The next prime is 42905243. The reversal of 42905232 is 23250924.

42905232 is a `hidden beast` number, since 429 + 0 + 5 + 232 = 666.

It can be written as a sum of positive squares in only one way, i.e., 36433296 + 6471936 = 6036^2 + 2544^2 .

It is a super-4 number, since 4×42905232⁴ (a number of 32 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42905196 and 42905205.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 148833 + ... + 149120.

Almost surely, 2^42905232 is an apocalyptic number.

It is an amenable number.

42905232 is an abundant number, since it is smaller than the sum of its proper divisors (77170230).

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

42905232 is a wasteful number, since it uses less digits than its factorization.

42905232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297967 (or 297958 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 42905232 is about 6550.2085462984. The cubic root of 42905232 is about 350.0822446178.

The spelling of 42905232 in words is "forty-two million, nine hundred five thousand, two hundred thirty-two".