264780 has 36 divisors (see below), whose sum is σ = 803712. Its totient is φ = 70560.

The previous prime is 264779. The next prime is 264787. The reversal of 264780 is 87462.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (264787) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 556 + ... + 915.

2²⁶⁴⁷⁸⁰ is an apocalyptic number.

264780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264780 is an abundant number, since it is smaller than the sum of its proper divisors (538932).

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

264780 is a wasteful number, since it uses less digits than its factorization.

264780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1486 (or 1481 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 264780 is about 514.5677797919. The cubic root of 264780 is about 64.2138031869.

The spelling of 264780 in words is "two hundred sixty-four thousand, seven hundred eighty".