72904074 has 16 divisors (see below), whose sum is σ = 146252640. Its totient is φ = 24227280.

The previous prime is 72904063. The next prime is 72904093. The reversal of 72904074 is 47040927.

It is a Curzon 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, 16369 + ... + 20340.

It is an arithmetic number, because the mean of its divisors is an integer number (9140790).

Almost surely, 2^72904074 is an apocalyptic number.

72904074 is an abundant number, since it is smaller than the sum of its proper divisors (73348566).

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

72904074 is a wasteful number, since it uses less digits than its factorization.

72904074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37045.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 72904074 is about 8538.3882554028. The cubic root of 72904074 is about 417.7507767044.

The spelling of 72904074 in words is "seventy-two million, nine hundred four thousand, seventy-four".