232537220 has 24 divisors (see below), whose sum is σ = 517054104. Its totient is φ = 87543296.

The previous prime is 232537187. The next prime is 232537223. The reversal of 232537220 is 22735232.

232537220 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 133494916 + 99042304 = 11554^2 + 9952^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 232537220.

It is not an unprimeable number, because it can be changed into a prime (232537223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 341627 + ... + 342306.

It is an arithmetic number, because the mean of its divisors is an integer number (21543921).

Almost surely, 2^232537220 is an apocalyptic number.

232537220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

232537220 is an abundant number, since it is smaller than the sum of its proper divisors (284516884).

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

232537220 is a wasteful number, since it uses less digits than its factorization.

232537220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683959 (or 683957 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 26.

The square root of 232537220 is about 15249.1711250153. The cubic root of 232537220 is about 614.9372840182.

The spelling of 232537220 in words is "two hundred thirty-two million, five hundred thirty-seven thousand, two hundred twenty".