264868740 has 72 divisors (see below), whose sum is σ = 845732160. Its totient is φ = 66913344.

The previous prime is 264868729. The next prime is 264868741. The reversal of 264868740 is 47868462.

264868740 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 not an unprimeable number, because it can be changed into a prime (264868741) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35304 + ... + 42143.

It is an arithmetic number, because the mean of its divisors is an integer number (11746280).

Almost surely, 2^264868740 is an apocalyptic number.

264868740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264868740 is an abundant number, since it is smaller than the sum of its proper divisors (580863420).

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

264868740 is a wasteful number, since it uses less digits than its factorization.

264868740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77481 (or 77476 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The square root of 264868740 is about 16274.7884778881. The cubic root of 264868740 is about 642.2097605547.

The spelling of 264868740 in words is "two hundred sixty-four million, eight hundred sixty-eight thousand, seven hundred forty".