231229408 has 24 divisors (see below), whose sum is σ = 458825472. Its totient is φ = 114702336.

The previous prime is 231229399. The next prime is 231229421. The reversal of 231229408 is 804922132.

It is a self number, because there is not a number n which added to its sum of digits gives 231229408.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 24385 + ... + 32512.

It is an arithmetic number, because the mean of its divisors is an integer number (19117728).

Almost surely, 2^231229408 is an apocalyptic number.

It is an amenable number.

231229408 is a deficient number, since it is larger than the sum of its proper divisors (227596064).

231229408 is a wasteful number, since it uses less digits than its factorization.

231229408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57034 (or 57026 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 231229408 is about 15206.2292498831. The cubic root of 231229408 is about 613.7822936289.

The spelling of 231229408 in words is "two hundred thirty-one million, two hundred twenty-nine thousand, four hundred eight".