74131964 has 12 divisors (see below), whose sum is σ = 129873744. Its totient is φ = 37025184.

The previous prime is 74131963. The next prime is 74131991. The reversal of 74131964 is 46913147.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74131963) 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, 5912 + ... + 13535.

It is an arithmetic number, because the mean of its divisors is an integer number (10822812).

Almost surely, 2^74131964 is an apocalyptic number.

It is an amenable number.

74131964 is a deficient number, since it is larger than the sum of its proper divisors (55741780).

74131964 is a wasteful number, since it uses less digits than its factorization.

74131964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20404 (or 20402 counting only the distinct ones).

The product of its digits is 18144, while the sum is 35.

The square root of 74131964 is about 8609.9921022031. The cubic root of 74131964 is about 420.0830599145.

The spelling of 74131964 in words is "seventy-four million, one hundred thirty-one thousand, nine hundred sixty-four".