74544 has 20 divisors (see below), whose sum is σ = 192696. Its totient is φ = 24832.

The previous prime is 74531. The next prime is 74551. The reversal of 74544 is 44547.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 729 + ... + 824.

2⁷⁴⁵⁴⁴ is an apocalyptic number.

It is an amenable number.

74544 is an abundant number, since it is smaller than the sum of its proper divisors (118152).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96348).

74544 is a wasteful number, since it uses less digits than its factorization.

74544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1564 (or 1558 counting only the distinct ones).

The product of its digits is 2240, while the sum is 24.

The square root of 74544 is about 273.0274711453. The cubic root of 74544 is about 42.0859916194.

The spelling of 74544 in words is "seventy-four thousand, five hundred forty-four".