74493564 has 24 divisors (see below), whose sum is σ = 174467328. Its totient is φ = 24738480.

The previous prime is 74493563. The next prime is 74493569. The reversal of 74493564 is 46539447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74493563) 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, 8202 + ... + 14705.

It is an arithmetic number, because the mean of its divisors is an integer number (7269472).

Almost surely, 2^74493564 is an apocalyptic number.

It is an amenable number.

74493564 is an abundant number, since it is smaller than the sum of its proper divisors (99973764).

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

74493564 is a wasteful number, since it uses less digits than its factorization.

74493564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23185 (or 23183 counting only the distinct ones).

The product of its digits is 362880, while the sum is 42.

The square root of 74493564 is about 8630.9654152939. The cubic root of 74493564 is about 420.7649777245.

It can be divided in two parts, 74493 and 564, that added together give a palindrome (75057).

The spelling of 74493564 in words is "seventy-four million, four hundred ninety-three thousand, five hundred sixty-four".