74399331 has 8 divisors (see below), whose sum is σ = 101506240. Its totient is φ = 48445992.

The previous prime is 74399329. The next prime is 74399371. The reversal of 74399331 is 13399347.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 74399331 - 2¹ = 74399329 is a prime.

It is a super-2 number, since 2×74399331² = 11070520906495122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74399331.

It is not an unprimeable number, because it can be changed into a prime (74399371) 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, 288241 + ... + 288498.

It is an arithmetic number, because the mean of its divisors is an integer number (12688280).

Almost surely, 2^74399331 is an apocalyptic number.

74399331 is a deficient number, since it is larger than the sum of its proper divisors (27106909).

74399331 is a wasteful number, since it uses less digits than its factorization.

74399331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576785.

The product of its digits is 61236, while the sum is 39.

The square root of 74399331 is about 8625.5046808868. The cubic root of 74399331 is about 420.5874828529.

The spelling of 74399331 in words is "seventy-four million, three hundred ninety-nine thousand, three hundred thirty-one".