264222644 has 12 divisors (see below), whose sum is σ = 528445344. Its totient is φ = 113238264.

The previous prime is 264222617. The next prime is 264222691. The reversal of 264222644 is 446222462.

264222644 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 264222644.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4718234 + ... + 4718289.

It is an arithmetic number, because the mean of its divisors is an integer number (44037112).

Almost surely, 2^264222644 is an apocalyptic number.

It is an amenable number.

264222644 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

264222644 is a wasteful number, since it uses less digits than its factorization.

264222644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9436534 (or 9436532 counting only the distinct ones).

The product of its digits is 36864, while the sum is 32.

The square root of 264222644 is about 16254.9267608316. The cubic root of 264222644 is about 641.6871532748.

The spelling of 264222644 in words is "two hundred sixty-four million, two hundred twenty-two thousand, six hundred forty-four".