231078936 has 32 divisors (see below), whose sum is σ = 630216000. Its totient is φ = 70023840.

The previous prime is 231078923. The next prime is 231078941. The reversal of 231078936 is 639870132.

It is a junction number, because it is equal to n+sod(n) for n = 231078894 and 231078903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 437386 + ... + 437913.

It is an arithmetic number, because the mean of its divisors is an integer number (19694250).

Almost surely, 2^231078936 is an apocalyptic number.

It is an amenable number.

231078936 is an abundant number, since it is smaller than the sum of its proper divisors (399137064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231078936 is a wasteful number, since it uses less digits than its factorization.

231078936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875319 (or 875315 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 231078936 is about 15201.2807355170. The cubic root of 231078936 is about 613.6491256046.

The spelling of 231078936 in words is "two hundred thirty-one million, seventy-eight thousand, nine hundred thirty-six".