72426704 has 30 divisors (see below), whose sum is σ = 163238994. Its totient is φ = 31039680.

The previous prime is 72426667. The next prime is 72426709. The reversal of 72426704 is 40762427.

It can be written as a sum of positive squares in only one way, i.e., 65934400 + 6492304 = 8120^2 + 2548^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72426709) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45407 + ... + 46974.

Almost surely, 2^72426704 is an apocalyptic number.

It is an amenable number.

72426704 is an abundant number, since it is smaller than the sum of its proper divisors (90812290).

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

72426704 is a wasteful number, since it uses less digits than its factorization.

72426704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92403 (or 92390 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 32.

The square root of 72426704 is about 8510.3880052557. The cubic root of 72426704 is about 416.8369798325.

The spelling of 72426704 in words is "seventy-two million, four hundred twenty-six thousand, seven hundred four".