234931431 has 24 divisors (see below), whose sum is σ = 368498160. Its totient is φ = 132730752.

The previous prime is 234931421. The next prime is 234931441. The reversal of 234931431 is 134139432.

It is an interprime number because it is at equal distance from previous prime (234931421) and next prime (234931441).

It is not a de Polignac number, because 234931431 - 2¹⁰ = 234930407 is a prime.

It is a super-2 number, since 2×234931431² = 110385554543415522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234931421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4105 + ... + 22061.

It is an arithmetic number, because the mean of its divisors is an integer number (15354090).

Almost surely, 2^234931431 is an apocalyptic number.

234931431 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

234931431 is a deficient number, since it is larger than the sum of its proper divisors (133566729).

234931431 is a wasteful number, since it uses less digits than its factorization.

234931431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18063 (or 18056 counting only the distinct ones).

The product of its digits is 7776, while the sum is 30.

The square root of 234931431 is about 15327.4730794088. The cubic root of 234931431 is about 617.0405536241.

The spelling of 234931431 in words is "two hundred thirty-four million, nine hundred thirty-one thousand, four hundred thirty-one".