74139132 has 24 divisors (see below), whose sum is σ = 173224576. Its totient is φ = 24679728.

The previous prime is 74139127. The next prime is 74139139. The reversal of 74139132 is 23193147.

It is a super-2 number, since 2×74139132² = 10993221787426848, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 74139132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74139139) 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, 6123 + ... + 13629.

Almost surely, 2^74139132 is an apocalyptic number.

It is an amenable number.

74139132 is an abundant number, since it is smaller than the sum of its proper divisors (99085444).

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

74139132 is a wasteful number, since it uses less digits than its factorization.

74139132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8337 (or 8335 counting only the distinct ones).

The product of its digits is 4536, while the sum is 30.

The square root of 74139132 is about 8610.4083526857. The cubic root of 74139132 is about 420.0965990959.

The spelling of 74139132 in words is "seventy-four million, one hundred thirty-nine thousand, one hundred thirty-two".