1920100044 has 24 divisors (see below), whose sum is σ = 4523733760. Its totient is φ = 633819024.

The previous prime is 1920100031. The next prime is 1920100057. The reversal of 1920100044 is 4400010291.

1920100044 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1920100031) and next prime (1920100057).

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, 775504 + ... + 777975.

Almost surely, 2^1920100044 is an apocalyptic number.

It is an amenable number.

1920100044 is an abundant number, since it is smaller than the sum of its proper divisors (2603633716).

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

1920100044 is a wasteful number, since it uses less digits than its factorization.

1920100044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1553589 (or 1553587 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 1920100044 is about 43818.9461762832. The cubic root of 1920100044 is about 1242.9145895044.

The spelling of 1920100044 in words is "one billion, nine hundred twenty million, one hundred thousand, forty-four".