444700447890 has 64 divisors (see below), whose sum is σ = 1083204513792. Its totient is φ = 116820267200.

The previous prime is 444700447801. The next prime is 444700447951. The reversal of 444700447890 is 98744007444.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2519635 + ... + 2690345.

It is an arithmetic number, because the mean of its divisors is an integer number (16925070528).

Almost surely, 2^444700447890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 444700447890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (541602256896).

444700447890 is an abundant number, since it is smaller than the sum of its proper divisors (638504065902).

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

444700447890 is a wasteful number, since it uses less digits than its factorization.

444700447890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172015.

The product of its (nonzero) digits is 3612672, while the sum is 51.

The spelling of 444700447890 in words is "four hundred forty-four billion, seven hundred million, four hundred forty-seven thousand, eight hundred ninety".