74574 has 16 divisors (see below), whose sum is σ = 165840. Its totient is φ = 24840.

The previous prime is 74573. The next prime is 74587. The reversal of 74574 is 47547.

It is a super-2 number, since 2×74574² = 11122562952, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 637 + ... + 744.

It is an arithmetic number, because the mean of its divisors is an integer number (10365).

2⁷⁴⁵⁷⁴ is an apocalyptic number.

74574 is an abundant number, since it is smaller than the sum of its proper divisors (91266).

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 (82920).

74574 is a wasteful number, since it uses less digits than its factorization.

74574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1392 (or 1386 counting only the distinct ones).

The product of its digits is 3920, while the sum is 27.

The square root of 74574 is about 273.0824051454. The cubic root of 74574 is about 42.0916366541.

Subtracting from 74574 its sum of digits (27), we obtain a palindrome (74547).

The spelling of 74574 in words is "seventy-four thousand, five hundred seventy-four".