74128532 has 12 divisors (see below), whose sum is σ = 131661600. Its totient is φ = 36510936.

The previous prime is 74128529. The next prime is 74128559. The reversal of 74128532 is 23582147.

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, 138032 + ... + 138567.

It is an arithmetic number, because the mean of its divisors is an integer number (10971800).

Almost surely, 2^74128532 is an apocalyptic number.

It is an amenable number.

74128532 is a deficient number, since it is larger than the sum of its proper divisors (57533068).

74128532 is a wasteful number, since it uses less digits than its factorization.

74128532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276670 (or 276668 counting only the distinct ones).

The product of its digits is 13440, while the sum is 32.

The square root of 74128532 is about 8609.7927965776. The cubic root of 74128532 is about 420.0765771180.

The spelling of 74128532 in words is "seventy-four million, one hundred twenty-eight thousand, five hundred thirty-two".