74816532 has 144 divisors (see below), whose sum is σ = 226262400. Its totient is φ = 20829312.

The previous prime is 74816477. The next prime is 74816537. The reversal of 74816532 is 23561847.

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

Its product of digits (40320) is a multiple of the sum of its prime divisors (168).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74816537) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 901363 + ... + 901445.

Almost surely, 2^74816532 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 74816532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113131200).

74816532 is an abundant number, since it is smaller than the sum of its proper divisors (151445868).

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

74816532 is a wasteful number, since it uses less digits than its factorization.

74816532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 168 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 74816532 is about 8649.6550220226. The cubic root of 74816532 is about 421.3721787499.

The spelling of 74816532 in words is "seventy-four million, eight hundred sixteen thousand, five hundred thirty-two".