72855332 has 36 divisors (see below), whose sum is σ = 143802288. Its totient is φ = 32029200.

The previous prime is 72855271. The next prime is 72855359. The reversal of 72855332 is 23355827.

Its product of digits (50400) is a multiple of the sum of its prime factors (1800).

It is a junction number, because it is equal to n+sod(n) for n = 72855292 and 72855301.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41423 + ... + 43145.

It is an arithmetic number, because the mean of its divisors is an integer number (3994508).

Almost surely, 2^72855332 is an apocalyptic number.

It is an amenable number.

72855332 is a deficient number, since it is larger than the sum of its proper divisors (70946956).

72855332 is a wasteful number, since it uses less digits than its factorization.

72855332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1800 (or 1767 counting only the distinct ones).

The product of its digits is 50400, while the sum is 35.

The square root of 72855332 is about 8535.5334924069. The cubic root of 72855332 is about 417.6576564036.

The spelling of 72855332 in words is "seventy-two million, eight hundred fifty-five thousand, three hundred thirty-two".