72258772 has 24 divisors (see below), whose sum is σ = 135596160. Its totient is φ = 33571200.

The previous prime is 72258751. The next prime is 72258773. The reversal of 72258772 is 27785227.

It is a hoax number, since the sum of its digits (40) 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 (72258773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1354 + ... + 12097.

It is an arithmetic number, because the mean of its divisors is an integer number (5649840).

Almost surely, 2^72258772 is an apocalyptic number.

It is an amenable number.

72258772 is a deficient number, since it is larger than the sum of its proper divisors (63337388).

72258772 is a wasteful number, since it uses less digits than its factorization.

72258772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13551 (or 13549 counting only the distinct ones).

The product of its digits is 109760, while the sum is 40.

The square root of 72258772 is about 8500.5159843388. The cubic root of 72258772 is about 416.5145645004.

The spelling of 72258772 in words is "seventy-two million, two hundred fifty-eight thousand, seven hundred seventy-two".