74998320 has 80 divisors (see below), whose sum is σ = 244746240. Its totient is φ = 18945792.

The previous prime is 74998279. The next prime is 74998327. The reversal of 74998320 is 2389947.

It is a tau number, because it is divible by the number of its divisors (80).

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (74998327) 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, 3664 + ... + 12783.

It is an arithmetic number, because the mean of its divisors is an integer number (3059328).

Almost surely, 2^74998320 is an apocalyptic number.

It is an amenable number.

74998320 is an abundant number, since it is smaller than the sum of its proper divisors (169747920).

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

74998320 is a wasteful number, since it uses less digits than its factorization.

74998320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16482 (or 16476 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 74998320 is about 8660.1570424560. The cubic root of 74998320 is about 421.7131838121.

The spelling of 74998320 in words is "seventy-four million, nine hundred ninety-eight thousand, three hundred twenty".