264646 has 8 divisors (see below), whose sum is σ = 400824. Its totient is φ = 131040.

The previous prime is 264643. The next prime is 264659. The reversal of 264646 is 646462.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a d-powerful number, because it can be written as 2¹¹ + 6 + 6³ + 4² + 4⁹ + 6³ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264643) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 360 + ... + 811.

It is an arithmetic number, because the mean of its divisors is an integer number (50103).

2²⁶⁴⁶⁴⁶ is an apocalyptic number.

264646 is a deficient number, since it is larger than the sum of its proper divisors (136178).

264646 is a wasteful number, since it uses less digits than its factorization.

264646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1286.

The product of its digits is 6912, while the sum is 28.

The square root of 264646 is about 514.4375569493. The cubic root of 264646 is about 64.2029689074.

The spelling of 264646 in words is "two hundred sixty-four thousand, six hundred forty-six".