42004084 has 12 divisors (see below), whose sum is σ = 74333700. Its totient is φ = 20765888.

The previous prime is 42004073. The next prime is 42004099. The reversal of 42004084 is 48040024.

It can be written as a sum of positive squares in 2 ways, for example, as 10890000 + 31114084 = 3300^2 + 5578^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58639 + ... + 59350.

It is an arithmetic number, because the mean of its divisors is an integer number (6194475).

Almost surely, 2^42004084 is an apocalyptic number.

It is an amenable number.

42004084 is a deficient number, since it is larger than the sum of its proper divisors (32329616).

42004084 is a wasteful number, since it uses less digits than its factorization.

42004084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118082 (or 118080 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 42004084 is about 6481.0557781892. The cubic root of 42004084 is about 347.6139308638.

The spelling of 42004084 in words is "forty-two million, four thousand, eighty-four".