231426369 has 8 divisors (see below), whose sum is σ = 342853920. Its totient is φ = 154284228.

The previous prime is 231426361. The next prime is 231426397. The reversal of 231426369 is 963624132.

231426369 is a `hidden beast` number, since 2 + 3 + 14 + 2 + 636 + 9 = 666.

It is not a de Polignac number, because 231426369 - 2³ = 231426361 is a prime.

It is a super-2 number, since 2×231426369² = 107116328537048322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231426361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4285647 + ... + 4285700.

It is an arithmetic number, because the mean of its divisors is an integer number (42856740).

Almost surely, 2^231426369 is an apocalyptic number.

It is an amenable number.

231426369 is a deficient number, since it is larger than the sum of its proper divisors (111427551).

231426369 is an equidigital number, since it uses as much as digits as its factorization.

231426369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8571356 (or 8571350 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

The square root of 231426369 is about 15212.7041974792. The cubic root of 231426369 is about 613.9565172374.

The spelling of 231426369 in words is "two hundred thirty-one million, four hundred twenty-six thousand, three hundred sixty-nine".