231536032 has 96 divisors (see below), whose sum is σ = 585591552. Its totient is φ = 87588864.

The previous prime is 231536021. The next prime is 231536051. The reversal of 231536032 is 230635132.

It is a happy number.

It is a super-2 number, since 2×231536032² = 107217868228610048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231535988 and 231536006.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65248 + ... + 68704.

It is an arithmetic number, because the mean of its divisors is an integer number (6099912).

Almost surely, 2^231536032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231536032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (292795776).

231536032 is an abundant number, since it is smaller than the sum of its proper divisors (354055520).

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

231536032 is a wasteful number, since it uses less digits than its factorization.

231536032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3510 (or 3502 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 231536032 is about 15216.3080936211. The cubic root of 231536032 is about 614.0534777840.

The spelling of 231536032 in words is "two hundred thirty-one million, five hundred thirty-six thousand, thirty-two".