74872284 has 24 divisors (see below), whose sum is σ = 184979088. Its totient is φ = 23489280.

The previous prime is 74872283. The next prime is 74872307. The reversal of 74872284 is 48227847.

It is a super-2 number, since 2×74872284² = 11211717822753312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74872283) 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, 183307 + ... + 183714.

It is an arithmetic number, because the mean of its divisors is an integer number (7707462).

Almost surely, 2^74872284 is an apocalyptic number.

It is an amenable number.

74872284 is an abundant number, since it is smaller than the sum of its proper divisors (110106804).

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

74872284 is a wasteful number, since it uses less digits than its factorization.

74872284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367045 (or 367043 counting only the distinct ones).

The product of its digits is 200704, while the sum is 42.

The square root of 74872284 is about 8652.8772093449. The cubic root of 74872284 is about 421.4768192090.

The spelling of 74872284 in words is "seventy-four million, eight hundred seventy-two thousand, two hundred eighty-four".