74393488 has 20 divisors (see below), whose sum is σ = 155225308. Its totient is φ = 34335360.

The previous prime is 74393461. The next prime is 74393489. The reversal of 74393488 is 88439347.

It can be written as a sum of positive squares in 2 ways, for example, as 29073664 + 45319824 = 5392^2 + 6732^2 .

It is a super-2 number, since 2×74393488² = 11068782113612288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74393489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178623 + ... + 179038.

Almost surely, 2^74393488 is an apocalyptic number.

It is an amenable number.

74393488 is an abundant number, since it is smaller than the sum of its proper divisors (80831820).

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

74393488 is a wasteful number, since it uses less digits than its factorization.

74393488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357682 (or 357676 counting only the distinct ones).

The product of its digits is 580608, while the sum is 46.

The square root of 74393488 is about 8625.1659694176. The cubic root of 74393488 is about 420.5764721939.

The spelling of 74393488 in words is "seventy-four million, three hundred ninety-three thousand, four hundred eighty-eight".