42556232 has 8 divisors (see below), whose sum is σ = 79792950. Its totient is φ = 21278112.

The previous prime is 42556231. The next prime is 42556247. The reversal of 42556232 is 23265524.

It can be written as a sum of positive squares in only one way, i.e., 31967716 + 10588516 = 5654^2 + 3254^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×42556232² = 3622065764075648, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42556195 and 42556204.

It is not an unprimeable number, because it can be changed into a prime (42556231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2659757 + ... + 2659772.

Almost surely, 2^42556232 is an apocalyptic number.

It is an amenable number.

42556232 is a deficient number, since it is larger than the sum of its proper divisors (37236718).

42556232 is a wasteful number, since it uses less digits than its factorization.

42556232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5319535 (or 5319531 counting only the distinct ones).

The product of its digits is 14400, while the sum is 29.

The square root of 42556232 is about 6523.5137770990. The cubic root of 42556232 is about 349.1304455136.

The spelling of 42556232 in words is "forty-two million, five hundred fifty-six thousand, two hundred thirty-two".