444440406220 has 48 divisors (see below), whose sum is σ = 941837789088. Its totient is φ = 176155499520.

The previous prime is 444440406209. The next prime is 444440406247. The reversal of 444440406220 is 22604044444.

It is a super-2 number, since 2×444440406220² (a number of 24 digits) contains 22 as substring.

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, 9063007 + ... + 9111913.

It is an arithmetic number, because the mean of its divisors is an integer number (19621620606).

Almost surely, 2^444440406220 is an apocalyptic number.

It is an amenable number.

444440406220 is an abundant number, since it is smaller than the sum of its proper divisors (497397382868).

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

444440406220 is a wasteful number, since it uses less digits than its factorization.

444440406220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53050 (or 53048 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 34.

The spelling of 444440406220 in words is "four hundred forty-four billion, four hundred forty million, four hundred six thousand, two hundred twenty".