232405664 has 12 divisors (see below), whose sum is σ = 457548714. Its totient is φ = 116202816.

The previous prime is 232405643. The next prime is 232405673. The reversal of 232405664 is 466504232.

232405664 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., 122323600 + 110082064 = 11060^2 + 10492^2 .

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 7262677 = 232405664 / (2 + 3 + 2 + 4 + 0 + 5 + 6 + 6 + 4).

It is a self number, because there is not a number n which added to its sum of digits gives 232405664.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3631307 + ... + 3631370.

Almost surely, 2^232405664 is an apocalyptic number.

It is an amenable number.

232405664 is a deficient number, since it is larger than the sum of its proper divisors (225143050).

232405664 is an equidigital number, since it uses as much as digits as its factorization.

232405664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7262687 (or 7262679 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 32.

The square root of 232405664 is about 15244.8569688272. The cubic root of 232405664 is about 614.8212969229.

Adding to 232405664 its reverse (466504232), we get a palindrome (698909896).

The spelling of 232405664 in words is "two hundred thirty-two million, four hundred five thousand, six hundred sixty-four".