74274231 has 4 divisors (see below), whose sum is σ = 99032312. Its totient is φ = 49516152.

The previous prime is 74274229. The next prime is 74274251. The reversal of 74274231 is 13247247.

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

It is not a de Polignac number, because 74274231 - 2¹ = 74274229 is a prime.

It is a super-2 number, since 2×74274231² = 11033322781282722, 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 (74274251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12379036 + ... + 12379041.

It is an arithmetic number, because the mean of its divisors is an integer number (24758078).

Almost surely, 2^74274231 is an apocalyptic number.

74274231 is a deficient number, since it is larger than the sum of its proper divisors (24758081).

74274231 is a wasteful number, since it uses less digits than its factorization.

74274231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24758080.

The product of its digits is 9408, while the sum is 30.

The square root of 74274231 is about 8618.2498803411. The cubic root of 74274231 is about 420.3516159825.

The spelling of 74274231 in words is "seventy-four million, two hundred seventy-four thousand, two hundred thirty-one".