74274072 has 32 divisors (see below), whose sum is σ = 190006080. Its totient is φ = 24181920.

The previous prime is 74274049. The next prime is 74274073. The reversal of 74274072 is 27047247.

It is a super-2 number, since 2×74274072² = 11033275542922368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74274073) 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, 34954 + ... + 37017.

It is an arithmetic number, because the mean of its divisors is an integer number (5937690).

Almost surely, 2^74274072 is an apocalyptic number.

It is an amenable number.

74274072 is an abundant number, since it is smaller than the sum of its proper divisors (115732008).

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

74274072 is a wasteful number, since it uses less digits than its factorization.

74274072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72023 (or 72019 counting only the distinct ones).

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

The square root of 74274072 is about 8618.2406557255. The cubic root of 74274072 is about 420.3513160312.

The spelling of 74274072 in words is "seventy-four million, two hundred seventy-four thousand, seventy-two".