44242220646 has 24 divisors (see below), whose sum is σ = 103231848720. Its totient is φ = 13612990896.

The previous prime is 44242220609. The next prime is 44242220657. The reversal of 44242220646 is 64602224244.

44242220646 is a `hidden beast` number, since 4 + 4 + 2 + 4 + 2 + 2 + 2 + 0 + 646 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 44242220646.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94534426 + ... + 94534893.

It is an arithmetic number, because the mean of its divisors is an integer number (4301327030).

Almost surely, 2^44242220646 is an apocalyptic number.

44242220646 is an abundant number, since it is smaller than the sum of its proper divisors (58989628074).

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

44242220646 is a wasteful number, since it uses less digits than its factorization.

44242220646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189069340 (or 189069337 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 36.

The spelling of 44242220646 in words is "forty-four billion, two hundred forty-two million, two hundred twenty thousand, six hundred forty-six".