72042508 has 6 divisors (see below), whose sum is σ = 126074396. Its totient is φ = 36021252.

The previous prime is 72042491. The next prime is 72042511. The reversal of 72042508 is 80524027.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9005310 + ... + 9005317.

Almost surely, 2^72042508 is an apocalyptic number.

It is an amenable number.

72042508 is a deficient number, since it is larger than the sum of its proper divisors (54031888).

72042508 is a wasteful number, since it uses less digits than its factorization.

72042508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18010631 (or 18010629 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 72042508 is about 8487.7858125662. The cubic root of 72042508 is about 416.0986190623.

The spelling of 72042508 in words is "seventy-two million, forty-two thousand, five hundred eight".