74388132 has 216 divisors, whose sum is σ = 248562496. Its totient is φ = 18942336.

The previous prime is 74388121. The next prime is 74388133. The reversal of 74388132 is 23188347.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (74388133) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2565094 + ... + 2565122.

Almost surely, 2^74388132 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74388132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124281248).

74388132 is an abundant number, since it is smaller than the sum of its proper divisors (174174364).

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

74388132 is a wasteful number, since it uses less digits than its factorization.

74388132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97 (or 54 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 74388132 is about 8624.8554770500. The cubic root of 74388132 is about 420.5663787403.

The spelling of 74388132 in words is "seventy-four million, three hundred eighty-eight thousand, one hundred thirty-two".