72193204 has 24 divisors (see below), whose sum is σ = 128586248. Its totient is φ = 35458560.

The previous prime is 72193201. The next prime is 72193213. The reversal of 72193204 is 40239127.

It can be written as a sum of positive squares in 4 ways, for example, as 21641104 + 50552100 = 4652^2 + 7110^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72193201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133174 + ... + 133714.

Almost surely, 2^72193204 is an apocalyptic number.

It is an amenable number.

72193204 is a deficient number, since it is larger than the sum of its proper divisors (56393044).

72193204 is a wasteful number, since it uses less digits than its factorization.

72193204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075 (or 1073 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 72193204 is about 8496.6584019837. The cubic root of 72193204 is about 416.3885438536.

The spelling of 72193204 in words is "seventy-two million, one hundred ninety-three thousand, two hundred four".