264999240 has 96 divisors (see below), whose sum is σ = 939556800. Its totient is φ = 64241280.

The previous prime is 264999227. The next prime is 264999269. The reversal of 264999240 is 42999462.

It is a happy number.

264999240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29500 + ... + 37419.

It is an arithmetic number, because the mean of its divisors is an integer number (9787050).

Almost surely, 2^264999240 is an apocalyptic number.

264999240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264999240 is an abundant number, since it is smaller than the sum of its proper divisors (674557560).

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

264999240 is a wasteful number, since it uses less digits than its factorization.

264999240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66947 (or 66940 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 264999240 is about 16278.7972528685. The cubic root of 264999240 is about 642.3152148179.

The spelling of 264999240 in words is "two hundred sixty-four million, nine hundred ninety-nine thousand, two hundred forty".