264626 has 4 divisors (see below), whose sum is σ = 396942. Its totient is φ = 132312.

The previous prime is 264619. The next prime is 264631. The reversal of 264626 is 626462.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 249001 + 15625 = 499^2 + 125^2 .

It is a junction number, because it is equal to n+sod(n) for n = 264595 and 264604.

It is an unprimeable number.

264626 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 (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66155 + ... + 66158.

2²⁶⁴⁶²⁶ is an apocalyptic number.

264626 is a deficient number, since it is larger than the sum of its proper divisors (132316).

264626 is a wasteful number, since it uses less digits than its factorization.

264626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132315.

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

The square root of 264626 is about 514.4181178769. The cubic root of 264626 is about 64.2013515371.

The spelling of 264626 in words is "two hundred sixty-four thousand, six hundred twenty-six".