264866740 has 24 divisors (see below), whose sum is σ = 557528832. Its totient is φ = 105697440.

The previous prime is 264866737. The next prime is 264866741. The reversal of 264866740 is 47668462.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264866741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6744 + ... + 23983.

It is an arithmetic number, because the mean of its divisors is an integer number (23230368).

Almost surely, 2^264866740 is an apocalyptic number.

264866740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264866740 is an abundant number, since it is smaller than the sum of its proper divisors (292662092).

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

264866740 is a wasteful number, since it uses less digits than its factorization.

264866740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31167 (or 31165 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 43.

The square root of 264866740 is about 16274.7270330411. The cubic root of 264866740 is about 642.2081441279.

The spelling of 264866740 in words is "two hundred sixty-four million, eight hundred sixty-six thousand, seven hundred forty".