244400816000 has 128 divisors (see below), whose sum is σ = 662882145120. Its totient is φ = 88872960000.

The previous prime is 244400815999. The next prime is 244400816039. The reversal of 244400816000 is 618004442.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×244400816000² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 518321 + ... + 870320.

Almost surely, 2^244400816000 is an apocalyptic number.

244400816000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

244400816000 is an abundant number, since it is smaller than the sum of its proper divisors (418481329120).

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

244400816000 is a wasteful number, since it uses less digits than its factorization.

244400816000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388681 (or 1388659 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

The spelling of 244400816000 in words is "two hundred forty-four billion, four hundred million, eight hundred sixteen thousand".