72423588 has 12 divisors (see below), whose sum is σ = 168988400. Its totient is φ = 24141192.

The previous prime is 72423551. The next prime is 72423601. The reversal of 72423588 is 88532427.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

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, 3017638 + ... + 3017661.

Almost surely, 2^72423588 is an apocalyptic number.

It is an amenable number.

72423588 is an abundant number, since it is smaller than the sum of its proper divisors (96564812).

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

72423588 is a wasteful number, since it uses less digits than its factorization.

72423588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6035306 (or 6035304 counting only the distinct ones).

The product of its digits is 107520, while the sum is 39.

The square root of 72423588 is about 8510.2049329026. The cubic root of 72423588 is about 416.8310019147.

It can be divided in two parts, 72 and 423588, that added together give a triangular number (423660 = T₉₂₀).

The spelling of 72423588 in words is "seventy-two million, four hundred twenty-three thousand, five hundred eighty-eight".