74542 has 16 divisors (see below), whose sum is σ = 124992. Its totient is φ = 33120.

The previous prime is 74531. The next prime is 74551. The reversal of 74542 is 24547.

It is a congruent number.

It is an unprimeable number.

74542 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1192 + ... + 1252.

It is an arithmetic number, because the mean of its divisors is an integer number (7812).

2⁷⁴⁵⁴² is an apocalyptic number.

74542 is a deficient number, since it is larger than the sum of its proper divisors (50450).

74542 is a wasteful number, since it uses less digits than its factorization.

74542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123.

The product of its digits is 1120, while the sum is 22.

The square root of 74542 is about 273.0238084856. The cubic root of 74542 is about 42.0856152299.

It can be divided in two parts, 745 and 42, that added together give a palindrome (787).

The spelling of 74542 in words is "seventy-four thousand, five hundred forty-two".