42540804 has 36 divisors (see below), whose sum is σ = 111005440. Its totient is φ = 13722480.

The previous prime is 42540793. The next prime is 42540833. The reversal of 42540804 is 40804524.

42540804 is a `hidden beast` number, since 42 + 540 + 80 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17944 + ... + 20175.

Almost surely, 2^42540804 is an apocalyptic number.

It is an amenable number.

42540804 is an abundant number, since it is smaller than the sum of its proper divisors (68464636).

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

42540804 is a wasteful number, since it uses less digits than its factorization.

42540804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38160 (or 38155 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 42540804 is about 6522.3311783441. The cubic root of 42540804 is about 349.0882500833.

The spelling of 42540804 in words is "forty-two million, five hundred forty thousand, eight hundred four".