72255270 has 32 divisors (see below), whose sum is σ = 183614688. Its totient is φ = 18134528.

The previous prime is 72255263. The next prime is 72255311. The reversal of 72255270 is 7255227.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 70329 + ... + 71348.

It is an arithmetic number, because the mean of its divisors is an integer number (5737959).

Almost surely, 2^72255270 is an apocalyptic number.

72255270 is an abundant number, since it is smaller than the sum of its proper divisors (111359418).

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

72255270 is a wasteful number, since it uses less digits than its factorization.

72255270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141704.

The product of its (nonzero) digits is 9800, while the sum is 30.

The square root of 72255270 is about 8500.3099943473. The cubic root of 72255270 is about 416.5078356400.

The spelling of 72255270 in words is "seventy-two million, two hundred fifty-five thousand, two hundred seventy".