1899282944 has 80 divisors (see below), whose sum is σ = 4145359680. Its totient is φ = 864030720.

The previous prime is 1899282919. The next prime is 1899282961. The reversal of 1899282944 is 4492829981.

It is a self number, because there is not a number n which added to its sum of digits gives 1899282944.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 470567 + ... + 474585.

It is an arithmetic number, because the mean of its divisors is an integer number (51816996).

Almost surely, 2^1899282944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1899282944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2072679840).

1899282944 is an abundant number, since it is smaller than the sum of its proper divisors (2246076736).

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

1899282944 is an equidigital number, since it uses as much as digits as its factorization.

1899282944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4121 (or 4105 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 56.

The square root of 1899282944 is about 43580.7634627940. The cubic root of 1899282944 is about 1238.4064997533.

The spelling of 1899282944 in words is "one billion, eight hundred ninety-nine million, two hundred eighty-two thousand, nine hundred forty-four".