74392331 has 4 divisors (see below), whose sum is σ = 80114832. Its totient is φ = 68669832.

The previous prime is 74392303. The next prime is 74392361. The reversal of 74392331 is 13329347.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 74392331 - 2¹⁴ = 74375947 is a prime.

It is a super-2 number, since 2×74392331² = 11068437823227122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74392301) 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, 2861231 + ... + 2861256.

It is an arithmetic number, because the mean of its divisors is an integer number (20028708).

Almost surely, 2^74392331 is an apocalyptic number.

74392331 is a deficient number, since it is larger than the sum of its proper divisors (5722501).

74392331 is a wasteful number, since it uses less digits than its factorization.

74392331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5722500.

The product of its digits is 13608, while the sum is 32.

The square root of 74392331 is about 8625.0988979837. The cubic root of 74392331 is about 420.5742918529.

The spelling of 74392331 in words is "seventy-four million, three hundred ninety-two thousand, three hundred thirty-one".