72205004 has 12 divisors (see below), whose sum is σ = 131852784. Its totient is φ = 34532784.

The previous prime is 72204989. The next prime is 72205033. The reversal of 72205004 is 40050227.

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, 392327 + ... + 392510.

It is an arithmetic number, because the mean of its divisors is an integer number (10987732).

Almost surely, 2^72205004 is an apocalyptic number.

It is an amenable number.

72205004 is a deficient number, since it is larger than the sum of its proper divisors (59647780).

72205004 is a wasteful number, since it uses less digits than its factorization.

72205004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784864 (or 784862 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 72205004 is about 8497.3527642437. The cubic root of 72205004 is about 416.4112288935.

The spelling of 72205004 in words is "seventy-two million, two hundred five thousand, four".