72474868 has 6 divisors (see below), whose sum is σ = 126831026. Its totient is φ = 36237432.

The previous prime is 72474841. The next prime is 72474877. The reversal of 72474868 is 86847427.

It can be written as a sum of positive squares in only one way, i.e., 72386064 + 88804 = 8508^2 + 298^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9059355 + ... + 9059362.

Almost surely, 2^72474868 is an apocalyptic number.

It is an amenable number.

72474868 is a deficient number, since it is larger than the sum of its proper divisors (54356158).

72474868 is a wasteful number, since it uses less digits than its factorization.

72474868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18118721 (or 18118719 counting only the distinct ones).

The product of its digits is 602112, while the sum is 46.

The square root of 72474868 is about 8513.2172531893. The cubic root of 72474868 is about 416.9293586859.

The spelling of 72474868 in words is "seventy-two million, four hundred seventy-four thousand, eight hundred sixty-eight".