74227272 has 32 divisors (see below), whose sum is σ = 212078400. Its totient is φ = 21207744.

The previous prime is 74227271. The next prime is 74227289. The reversal of 74227272 is 27272247.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (74227271) 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, 220747 + ... + 221082.

It is an arithmetic number, because the mean of its divisors is an integer number (6627450).

Almost surely, 2^74227272 is an apocalyptic number.

It is an amenable number.

74227272 is an abundant number, since it is smaller than the sum of its proper divisors (137851128).

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

74227272 is a wasteful number, since it uses less digits than its factorization.

74227272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441845 (or 441841 counting only the distinct ones).

The product of its digits is 21952, while the sum is 33.

The square root of 74227272 is about 8615.5250565476. The cubic root of 74227272 is about 420.2630098683.

The spelling of 74227272 in words is "seventy-four million, two hundred twenty-seven thousand, two hundred seventy-two".