74779152 has 40 divisors (see below), whose sum is σ = 220777536. Its totient is φ = 21365376.

The previous prime is 74779151. The next prime is 74779157. The reversal of 74779152 is 25197747.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (74779151) 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, 110943 + ... + 111614.

Almost surely, 2^74779152 is an apocalyptic number.

It is an amenable number.

74779152 is an abundant number, since it is smaller than the sum of its proper divisors (145998384).

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

74779152 is a wasteful number, since it uses less digits than its factorization.

74779152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222575 (or 222569 counting only the distinct ones).

The product of its digits is 123480, while the sum is 42.

The square root of 74779152 is about 8647.4939722442. The cubic root of 74779152 is about 421.3019914285.

The spelling of 74779152 in words is "seventy-four million, seven hundred seventy-nine thousand, one hundred fifty-two".