74407272 has 32 divisors (see below), whose sum is σ = 192434400. Its totient is φ = 23946944.

The previous prime is 74407271. The next prime is 74407279. The reversal of 74407272 is 27270447.

It is not an unprimeable number, because it can be changed into a prime (74407271) 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, 52758 + ... + 54149.

It is an arithmetic number, because the mean of its divisors is an integer number (6013575).

Almost surely, 2^74407272 is an apocalyptic number.

It is an amenable number.

74407272 is an abundant number, since it is smaller than the sum of its proper divisors (118027128).

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

74407272 is a wasteful number, since it uses less digits than its factorization.

74407272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106945 (or 106941 counting only the distinct ones).

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

The square root of 74407272 is about 8625.9649894954. The cubic root of 74407272 is about 420.6024460985.

The spelling of 74407272 in words is "seventy-four million, four hundred seven thousand, two hundred seventy-two".