42057008 has 20 divisors (see below), whose sum is σ = 93126480. Its totient is φ = 18024384.

The previous prime is 42057007. The next prime is 42057011. The reversal of 42057008 is 80075024.

It is a super-4 number, since 4×42057008⁴ (a number of 32 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (42057007) 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 in 3 ways as a sum of consecutive naturals, for example, 187643 + ... + 187866.

It is an arithmetic number, because the mean of its divisors is an integer number (4656324).

Almost surely, 2^42057008 is an apocalyptic number.

It is an amenable number.

42057008 is an abundant number, since it is smaller than the sum of its proper divisors (51069472).

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

42057008 is a wasteful number, since it uses less digits than its factorization.

42057008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375524 (or 375518 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 42057008 is about 6485.1374696301. The cubic root of 42057008 is about 347.7598642803.

The spelling of 42057008 in words is "forty-two million, fifty-seven thousand, eight".