264288740 has 24 divisors (see below), whose sum is σ = 565480440. Its totient is φ = 103720448.

The previous prime is 264288719. The next prime is 264288757. The reversal of 264288740 is 47882462.

It can be written as a sum of positive squares in 4 ways, for example, as 61340224 + 202948516 = 7832^2 + 14246^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123605 + ... + 125724.

It is an arithmetic number, because the mean of its divisors is an integer number (23561685).

Almost surely, 2^264288740 is an apocalyptic number.

264288740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264288740 is an abundant number, since it is smaller than the sum of its proper divisors (301191700).

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

264288740 is a wasteful number, since it uses less digits than its factorization.

264288740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249391 (or 249389 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 41.

The square root of 264288740 is about 16256.9597403697. The cubic root of 264288740 is about 641.7406553988.

The spelling of 264288740 in words is "two hundred sixty-four million, two hundred eighty-eight thousand, seven hundred forty".