4444561000 has 64 divisors (see below), whose sum is σ = 11345780160. Its totient is φ = 1616200000.

The previous prime is 4444560947. The next prime is 4444561013. The reversal of 4444561000 is 1654444.

It is a self number, because there is not a number n which added to its sum of digits gives 4444561000.

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, 191026 + ... + 213025.

It is an arithmetic number, because the mean of its divisors is an integer number (177277815).

Almost surely, 2^4444561000 is an apocalyptic number.

4444561000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4444561000 is an abundant number, since it is smaller than the sum of its proper divisors (6901219160).

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

4444561000 is a wasteful number, since it uses less digits than its factorization.

4444561000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404083 (or 404069 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 4444561000 is about 66667.5408276022. The cubic root of 4444561000 is about 1644.1557552973.

The spelling of 4444561000 in words is "four billion, four hundred forty-four million, five hundred sixty-one thousand".