264643132 has 24 divisors (see below), whose sum is σ = 506932832. Its totient is φ = 120139200.

The previous prime is 264643111. The next prime is 264643133. The reversal of 264643132 is 231346462.

264643132 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 is a junction number, because it is equal to n+sod(n) for n = 264643094 and 264643103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264643133) 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, 38544 + ... + 44887.

Almost surely, 2^264643132 is an apocalyptic number.

It is an amenable number.

264643132 is a deficient number, since it is larger than the sum of its proper divisors (242289700).

264643132 is a wasteful number, since it uses less digits than its factorization.

264643132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83509 (or 83507 counting only the distinct ones).

The product of its digits is 20736, while the sum is 31.

The square root of 264643132 is about 16267.8557898698. The cubic root of 264643132 is about 642.0273698149.

Adding to 264643132 its reverse (231346462), we get a palindrome (495989594).

The spelling of 264643132 in words is "two hundred sixty-four million, six hundred forty-three thousand, one hundred thirty-two".