215332232 has 8 divisors (see below), whose sum is σ = 403747950. Its totient is φ = 107666112.

The previous prime is 215332219. The next prime is 215332237. The reversal of 215332232 is 232233512.

215332232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 206956996 + 8375236 = 14386^2 + 2894^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 215332198 and 215332207.

It is not an unprimeable number, because it can be changed into a prime (215332237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13458257 + ... + 13458272.

Almost surely, 2^215332232 is an apocalyptic number.

It is an amenable number.

215332232 is a deficient number, since it is larger than the sum of its proper divisors (188415718).

215332232 is a wasteful number, since it uses less digits than its factorization.

215332232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26916535 (or 26916531 counting only the distinct ones).

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

The square root of 215332232 is about 14674.2029425792. The cubic root of 215332232 is about 599.3810580339.

Adding to 215332232 its reverse (232233512), we get a palindrome (447565744).

The spelling of 215332232 in words is "two hundred fifteen million, three hundred thirty-two thousand, two hundred thirty-two".