1900057944 has 16 divisors (see below), whose sum is σ = 4750144920. Its totient is φ = 633352640.

The previous prime is 1900057937. The next prime is 1900057987. The reversal of 1900057944 is 4497500091.

It is a super-2 number, since 2×1900057944² = 7220440381115014272, which contains 22 as substring.

It is a congruent number.

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, 39584517 + ... + 39584564.

Almost surely, 2^1900057944 is an apocalyptic number.

It is an amenable number.

1900057944 is an abundant number, since it is smaller than the sum of its proper divisors (2850086976).

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

1900057944 is a wasteful number, since it uses less digits than its factorization.

1900057944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79169090 (or 79169086 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 1900057944 is about 43589.6540936034. The cubic root of 1900057944 is about 1238.5749202488.

The spelling of 1900057944 in words is "one billion, nine hundred million, fifty-seven thousand, nine hundred forty-four".