231970232 has 16 divisors (see below), whose sum is σ = 468401640. Its totient is φ = 107063136.

The previous prime is 231970229. The next prime is 231970237. The reversal of 231970232 is 232079132.

It is a junction number, because it is equal to n+sod(n) for n = 231970195 and 231970204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231970237) 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, 1115138 + ... + 1115345.

Almost surely, 2^231970232 is an apocalyptic number.

It is an amenable number.

231970232 is an abundant number, since it is smaller than the sum of its proper divisors (236431408).

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

231970232 is a wasteful number, since it uses less digits than its factorization.

231970232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2230502 (or 2230498 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 231970232 is about 15230.5689979068. The cubic root of 231970232 is about 614.4370833443.

Subtracting 231970232 from its reverse (232079132), we obtain a square (108900 = 330²).

The spelling of 231970232 in words is "two hundred thirty-one million, nine hundred seventy thousand, two hundred thirty-two".