74331 has 8 divisors (see below), whose sum is σ = 110160. Its totient is φ = 49536.

The previous prime is 74323. The next prime is 74353. The reversal of 74331 is 13347.

It is not a de Polignac number, because 74331 - 2³ = 74323 is a prime.

It is a super-2 number, since 2×74331² = 11050195122, which contains 22 as substring.

74331 is a lucky number.

It is a plaindrome in base 13 and base 16.

It is a nialpdrome in base 10.

It is a zygodrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (74311) 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, 1350 + ... + 1403.

It is an arithmetic number, because the mean of its divisors is an integer number (13770).

2⁷⁴³³¹ is an apocalyptic number.

74331 is a deficient number, since it is larger than the sum of its proper divisors (35829).

74331 is a wasteful number, since it uses less digits than its factorization.

74331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2762 (or 2756 counting only the distinct ones).

The product of its digits is 252, while the sum is 18.

The square root of 74331 is about 272.6371214637. The cubic root of 74331 is about 42.0458682563.

Adding to 74331 its reverse (13347), we get a palindrome (87678).

The spelling of 74331 in words is "seventy-four thousand, three hundred thirty-one".