232513232 has 60 divisors (see below), whose sum is σ = 527661540. Its totient is φ = 98961408.

The previous prime is 232513219. The next prime is 232513243. The reversal of 232513232 is 232315232.

It can be written as a sum of positive squares in 2 ways, for example, as 89567296 + 142945936 = 9464^2 + 11956^2 .

It is a nialpdrome in base 7.

It is a zygodrome in base 7.

It is a junction number, because it is equal to n+sod(n) for n = 232513198 and 232513207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 122144 + ... + 124032.

It is an arithmetic number, because the mean of its divisors is an integer number (8794359).

Almost surely, 2^232513232 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 232513232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (263830770).

232513232 is an abundant number, since it is smaller than the sum of its proper divisors (295148308).

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

232513232 is a wasteful number, since it uses less digits than its factorization.

232513232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2068 (or 2055 counting only the distinct ones).

The product of its digits is 2160, while the sum is 23.

The square root of 232513232 is about 15248.3845701766. The cubic root of 232513232 is about 614.9161381233.

Adding to 232513232 its reverse (232315232), we get a palindrome (464828464).

The spelling of 232513232 in words is "two hundred thirty-two million, five hundred thirteen thousand, two hundred thirty-two".