72326028 has 48 divisors (see below), whose sum is σ = 171974880. Its totient is φ = 23654400.

The previous prime is 72326011. The next prime is 72326047. The reversal of 72326028 is 82062327.

It is a junction number, because it is equal to n+sod(n) for n = 72325986 and 72326004.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 257248 + ... + 257528.

It is an arithmetic number, because the mean of its divisors is an integer number (3582810).

Almost surely, 2^72326028 is an apocalyptic number.

It is an amenable number.

72326028 is an abundant number, since it is smaller than the sum of its proper divisors (99648852).

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

72326028 is a wasteful number, since it uses less digits than its factorization.

72326028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618 (or 616 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 72326028 is about 8504.4710593899. The cubic root of 72326028 is about 416.6437502774.

It can be divided in two parts, 723 and 26028, that multiplied together give a square (18818244 = 4338²).

The spelling of 72326028 in words is "seventy-two million, three hundred twenty-six thousand, twenty-eight".