74120431 has 8 divisors (see below), whose sum is σ = 92409984. Its totient is φ = 57756120.

The previous prime is 74120413. The next prime is 74120437. The reversal of 74120431 is 13402147.

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

It is a cyclic number.

It is not a de Polignac number, because 74120431 - 2⁹ = 74119919 is a prime.

It is a super-2 number, since 2×74120431² = 10987676583251522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74120437) 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, 481225 + ... + 481378.

It is an arithmetic number, because the mean of its divisors is an integer number (11551248).

Almost surely, 2^74120431 is an apocalyptic number.

74120431 is a deficient number, since it is larger than the sum of its proper divisors (18289553).

74120431 is a wasteful number, since it uses less digits than its factorization.

74120431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962621.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 74120431 is about 8609.3223310549. The cubic root of 74120431 is about 420.0612741290.

Adding to 74120431 its reverse (13402147), we get a palindrome (87522578).

The spelling of 74120431 in words is "seventy-four million, one hundred twenty thousand, four hundred thirty-one".