44002446664 has 24 divisors (see below), whose sum is σ = 90686862630. Its totient is φ = 20001111680.

The previous prime is 44002446647. The next prime is 44002446667. The reversal of 44002446664 is 46664420044.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 41636402500 + 2366044164 = 204050^2 + 48642^2 .

It is not an unprimeable number, because it can be changed into a prime (44002446667) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22727569 + ... + 22729504.

Almost surely, 2^44002446664 is an apocalyptic number.

44002446664 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

44002446664 is an abundant number, since it is smaller than the sum of its proper divisors (46684415966).

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

44002446664 is a wasteful number, since it uses less digits than its factorization.

44002446664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45457101 (or 45457086 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 40.

The spelling of 44002446664 in words is "forty-four billion, two million, four hundred forty-six thousand, six hundred sixty-four".