42656512 has 18 divisors (see below), whose sum is σ = 85146908. Its totient is φ = 21328128.

The previous prime is 42656491. The next prime is 42656521. The reversal of 42656512 is 21565624.

It is a super-2 number, since 2×42656512² = 3639156032012288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83058 + ... + 83569.

Almost surely, 2^42656512 is an apocalyptic number.

It is an amenable number.

42656512 is a deficient number, since it is larger than the sum of its proper divisors (42490396).

42656512 is an equidigital number, since it uses as much as digits as its factorization.

42656512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166643 (or 166629 counting only the distinct ones).

The product of its digits is 14400, while the sum is 31.

The square root of 42656512 is about 6531.1952964216. The cubic root of 42656512 is about 349.4044620749.

The spelling of 42656512 in words is "forty-two million, six hundred fifty-six thousand, five hundred twelve".