262664 has 8 divisors (see below), whose sum is σ = 492510. Its totient is φ = 131328.

The previous prime is 262657. The next prime is 262681. The reversal of 262664 is 466262.

262664 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 209764 + 52900 = 458^2 + 230^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

262664 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16409 + ... + 16424.

2²⁶²⁶⁶⁴ is an apocalyptic number.

It is an amenable number.

262664 is a deficient number, since it is larger than the sum of its proper divisors (229846).

262664 is a wasteful number, since it uses less digits than its factorization.

262664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32839 (or 32835 counting only the distinct ones).

The product of its digits is 3456, while the sum is 26.

The square root of 262664 is about 512.5075609198. The cubic root of 262664 is about 64.0422897581.

The spelling of 262664 in words is "two hundred sixty-two thousand, six hundred sixty-four".