42656810 has 64 divisors (see below), whose sum is σ = 91445760. Its totient is φ = 14023680.

The previous prime is 42656773. The next prime is 42656827. The reversal of 42656810 is 1865624.

It is a super-2 number, since 2×42656810² = 3639206878752200, which contains 22 as substring.

It is an unprimeable number.

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 in 31 ways as a sum of consecutive naturals, for example, 255347 + ... + 255513.

It is an arithmetic number, because the mean of its divisors is an integer number (1428840).

Almost surely, 2^42656810 is an apocalyptic number.

42656810 is an abundant number, since it is smaller than the sum of its proper divisors (48788950).

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

42656810 is a wasteful number, since it uses less digits than its factorization.

42656810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 42656810 is about 6531.2181099700. The cubic root of 42656810 is about 349.4052757239.

The spelling of 42656810 in words is "forty-two million, six hundred fifty-six thousand, eight hundred ten".