1899913744 has 45 divisors (see below), whose sum is σ = 3916464391. Its totient is φ = 892682240.

The previous prime is 1899913723. The next prime is 1899913783. The reversal of 1899913744 is 4473199981.

The square root of 1899913744 is 43588.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 908419600 + 991494144 = 30140^2 + 31488^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2963664 + ... + 2964304.

Almost surely, 2^1899913744 is an apocalyptic number.

1899913744 is the 43588-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1899913744

1899913744 is an abundant number, since it is smaller than the sum of its proper divisors (2016550647).

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

1899913744 is an frugal number, since it uses more digits than its factorization.

1899913744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1324 (or 660 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 55.

The cubic root of 1899913744 is about 1238.5435866391.

The spelling of 1899913744 in words is "one billion, eight hundred ninety-nine million, nine hundred thirteen thousand, seven hundred forty-four".