74548992 has 144 divisors (see below), whose sum is σ = 232198400. Its totient is φ = 21224448.

The previous prime is 74548979. The next prime is 74548993. The reversal of 74548992 is 29984547.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74548993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 263283 + ... + 263565.

Almost surely, 2^74548992 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 74548992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116099200).

74548992 is an abundant number, since it is smaller than the sum of its proper divisors (157649408).

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

74548992 is an equidigital number, since it uses as much as digits as its factorization.

74548992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323 (or 295 counting only the distinct ones).

The product of its digits is 725760, while the sum is 48.

The square root of 74548992 is about 8634.1758147492. The cubic root of 74548992 is about 420.8693105819.

The spelling of 74548992 in words is "seventy-four million, five hundred forty-eight thousand, nine hundred ninety-two".