74749912 has 16 divisors (see below), whose sum is σ = 140289840. Its totient is φ = 37339296.

The previous prime is 74749889. The next prime is 74749919. The reversal of 74749912 is 21994747.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74749919) 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, 5853 + ... + 13555.

It is an arithmetic number, because the mean of its divisors is an integer number (8768115).

Almost surely, 2^74749912 is an apocalyptic number.

It is an amenable number.

74749912 is a deficient number, since it is larger than the sum of its proper divisors (65539928).

74749912 is a wasteful number, since it uses less digits than its factorization.

74749912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8922 (or 8918 counting only the distinct ones).

The product of its digits is 127008, while the sum is 43.

The square root of 74749912 is about 8645.8031437224. The cubic root of 74749912 is about 421.2470720386.

The spelling of 74749912 in words is "seventy-four million, seven hundred forty-nine thousand, nine hundred twelve".