74402331 has 16 divisors (see below), whose sum is σ = 102187008. Its totient is φ = 48123200.

The previous prime is 74402323. The next prime is 74402333. The reversal of 74402331 is 13320447.

It is a cyclic number.

It is not a de Polignac number, because 74402331 - 2³ = 74402323 is a prime.

It is a super-2 number, since 2×74402331² = 11071413716467122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74402333) 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, 21910 + ... + 25076.

It is an arithmetic number, because the mean of its divisors is an integer number (6386688).

Almost surely, 2^74402331 is an apocalyptic number.

74402331 is a deficient number, since it is larger than the sum of its proper divisors (27784677).

74402331 is a wasteful number, since it uses less digits than its factorization.

74402331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3402.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 74402331 is about 8625.6785820015. The cubic root of 74402331 is about 420.5931358853.

Adding to 74402331 its reverse (13320447), we get a palindrome (87722778).

The spelling of 74402331 in words is "seventy-four million, four hundred two thousand, three hundred thirty-one".