264640324 has 12 divisors (see below), whose sum is σ = 498745324. Its totient is φ = 122141664.

The previous prime is 264640307. The next prime is 264640333. The reversal of 264640324 is 423046462.

264640324 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 2 ways, for example, as 92505924 + 172134400 = 9618^2 + 13120^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2544567 + ... + 2544670.

Almost surely, 2^264640324 is an apocalyptic number.

It is an amenable number.

264640324 is a deficient number, since it is larger than the sum of its proper divisors (234105000).

264640324 is a wasteful number, since it uses less digits than its factorization.

264640324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5089254 (or 5089252 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 31.

The square root of 264640324 is about 16267.7694844745. The cubic root of 264640324 is about 642.0250990598.

Adding to 264640324 its reverse (423046462), we get a palindrome (687686786).

The spelling of 264640324 in words is "two hundred sixty-four million, six hundred forty thousand, three hundred twenty-four".