42578008 has 32 divisors (see below), whose sum is σ = 89223120. Its totient is φ = 18880000.

The previous prime is 42577981. The next prime is 42578017. The reversal of 42578008 is 80087524.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2293 + ... + 9508.

Almost surely, 2^42578008 is an apocalyptic number.

It is an amenable number.

42578008 is an abundant number, since it is smaller than the sum of its proper divisors (46645112).

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

42578008 is a wasteful number, since it uses less digits than its factorization.

42578008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11859 (or 11855 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 34.

The square root of 42578008 is about 6525.1826028089. The cubic root of 42578008 is about 349.1899853102.

The spelling of 42578008 in words is "forty-two million, five hundred seventy-eight thousand, eight".