74991412 has 12 divisors (see below), whose sum is σ = 131505696. Its totient is φ = 37418360.

The previous prime is 74991383. The next prime is 74991421. The reversal of 74991412 is 21419947.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17128 + ... + 21055.

It is an arithmetic number, because the mean of its divisors is an integer number (10958808).

Almost surely, 2^74991412 is an apocalyptic number.

It is an amenable number.

74991412 is a deficient number, since it is larger than the sum of its proper divisors (56514284).

74991412 is a wasteful number, since it uses less digits than its factorization.

74991412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38678 (or 38676 counting only the distinct ones).

The product of its digits is 18144, while the sum is 37.

The square root of 74991412 is about 8659.7581952385. The cubic root of 74991412 is about 421.7002355926.

It can be divided in two parts, 7499 and 1412, that added together give a triangular number (8911 = T₁₃₃).

The spelling of 74991412 in words is "seventy-four million, nine hundred ninety-one thousand, four hundred twelve".