74277272 has 16 divisors (see below), whose sum is σ = 141349560. Its totient is φ = 36584064.

The previous prime is 74277239. The next prime is 74277277. The reversal of 74277272 is 27277247.

It is a super-2 number, since 2×74277272² = 11034226271523968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74277277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68753 + ... + 69824.

Almost surely, 2^74277272 is an apocalyptic number.

It is an amenable number.

74277272 is a deficient number, since it is larger than the sum of its proper divisors (67072288).

74277272 is a wasteful number, since it uses less digits than its factorization.

74277272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138650 (or 138646 counting only the distinct ones).

The product of its digits is 76832, while the sum is 38.

The square root of 74277272 is about 8618.4263064669. The cubic root of 74277272 is about 420.3573527044.

The spelling of 74277272 in words is "seventy-four million, two hundred seventy-seven thousand, two hundred seventy-two".