74665312 has 24 divisors (see below), whose sum is σ = 147258216. Its totient is φ = 37266432.

The previous prime is 74665301. The next prime is 74665313. The reversal of 74665312 is 21356647.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74665313) 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, 19803 + ... + 23269.

It is an arithmetic number, because the mean of its divisors is an integer number (6135759).

Almost surely, 2^74665312 is an apocalyptic number.

It is an amenable number.

74665312 is a deficient number, since it is larger than the sum of its proper divisors (72592904).

74665312 is a wasteful number, since it uses less digits than its factorization.

74665312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4150 (or 4142 counting only the distinct ones).

The product of its digits is 30240, while the sum is 34.

The square root of 74665312 is about 8640.9092114198. The cubic root of 74665312 is about 421.0880932326.

The spelling of 74665312 in words is "seventy-four million, six hundred sixty-five thousand, three hundred twelve".