64022644 has 12 divisors (see below), whose sum is σ = 128045344. Its totient is φ = 27438264.

The previous prime is 64022597. The next prime is 64022653. The reversal of 64022644 is 44622046.

64022644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

64022644 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 2286523 = 64022644 / (6 + 4 + 0 + 2 + 2 + 6 + 4 + 4).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1143234 + ... + 1143289.

Almost surely, 2^64022644 is an apocalyptic number.

It is an amenable number.

64022644 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.

64022644 is a wasteful number, since it uses less digits than its factorization.

64022644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2286534 (or 2286532 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 64022644 is about 8001.4151248389. The cubic root of 64022644 is about 400.0471694374.

The spelling of 64022644 in words is "sixty-four million, twenty-two thousand, six hundred forty-four".