264433320 has 48 divisors (see below), whose sum is σ = 859409460. Its totient is φ = 70515456.

The previous prime is 264433319. The next prime is 264433333. The reversal of 264433320 is 23334462.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 258759396 + 5673924 = 16086^2 + 2382^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 366909 + ... + 367628.

Almost surely, 2^264433320 is an apocalyptic number.

264433320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264433320 is an abundant number, since it is smaller than the sum of its proper divisors (594976140).

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

264433320 is a wasteful number, since it uses less digits than its factorization.

264433320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734554 (or 734547 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

The square root of 264433320 is about 16261.4058432843. The cubic root of 264433320 is about 641.8576561585.

Adding to 264433320 its reverse (23334462), we get a palindrome (287767782).

The spelling of 264433320 in words is "two hundred sixty-four million, four hundred thirty-three thousand, three hundred twenty".