74452288 has 56 divisors (see below), whose sum is σ = 158447232. Its totient is φ = 34619904.

The previous prime is 74452271. The next prime is 74452291. The reversal of 74452288 is 88225447.

It is a self number, because there is not a number n which added to its sum of digits gives 74452288.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53781 + ... + 55147.

Almost surely, 2^74452288 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 74452288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79223616).

74452288 is an abundant number, since it is smaller than the sum of its proper divisors (83994944).

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

74452288 is a wasteful number, since it uses less digits than its factorization.

74452288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1439 (or 1429 counting only the distinct ones).

The product of its digits is 143360, while the sum is 40.

The square root of 74452288 is about 8628.5739262059. The cubic root of 74452288 is about 420.6872497393.

The spelling of 74452288 in words is "seventy-four million, four hundred fifty-two thousand, two hundred eighty-eight".