72426832 has 40 divisors (see below), whose sum is σ = 143990784. Its totient is φ = 35278464.

The previous prime is 72426829. The next prime is 72426863. The reversal of 72426832 is 23862427.

It is a congruent 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, 188913 + ... + 189295.

Almost surely, 2^72426832 is an apocalyptic number.

It is an amenable number.

72426832 is a deficient number, since it is larger than the sum of its proper divisors (71563952).

72426832 is a wasteful number, since it uses less digits than its factorization.

72426832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667 (or 661 counting only the distinct ones).

The product of its digits is 32256, while the sum is 34.

The square root of 72426832 is about 8510.3955254735. The cubic root of 72426832 is about 416.8372253916.

It can be divided in two parts, 724 and 26832, that added together give a square (27556 = 166²).

The spelling of 72426832 in words is "seventy-two million, four hundred twenty-six thousand, eight hundred thirty-two".