42672904 has 16 divisors (see below), whose sum is σ = 80805420. Its totient is φ = 21124800.

The previous prime is 42672901. The next prime is 42672913. The reversal of 42672904 is 40927624.

It can be written as a sum of positive squares in 2 ways, for example, as 42276004 + 396900 = 6502^2 + 630^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42672904.

It is not an unprimeable number, because it can be changed into a prime (42672901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25599 + ... + 27214.

Almost surely, 2^42672904 is an apocalyptic number.

It is an amenable number.

42672904 is a deficient number, since it is larger than the sum of its proper divisors (38132516).

42672904 is a wasteful number, since it uses less digits than its factorization.

42672904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52920 (or 52916 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 42672904 is about 6532.4500763496. The cubic root of 42672904 is about 349.4492126041.

The spelling of 42672904 in words is "forty-two million, six hundred seventy-two thousand, nine hundred four".