1938099944 has 16 divisors (see below), whose sum is σ = 3964295520. Its totient is φ = 880954480.

The previous prime is 1938099937. The next prime is 1938099953. The reversal of 1938099944 is 4499908391.

It is a self number, because there is not a number n which added to its sum of digits gives 1938099944.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11011844 + ... + 11012019.

It is an arithmetic number, because the mean of its divisors is an integer number (247768470).

Almost surely, 2^1938099944 is an apocalyptic number.

It is an amenable number.

1938099944 is an abundant number, since it is smaller than the sum of its proper divisors (2026195576).

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

1938099944 is a wasteful number, since it uses less digits than its factorization.

1938099944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22023880 (or 22023876 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 56.

The square root of 1938099944 is about 44023.8565325665. The cubic root of 1938099944 is about 1246.7864000202.

The spelling of 1938099944 in words is "one billion, nine hundred thirty-eight million, ninety-nine thousand, nine hundred forty-four".