1899168892 has 12 divisors (see below), whose sum is σ = 3333410080. Its totient is φ = 946766016.

The previous prime is 1899168881. The next prime is 1899168961. The reversal of 1899168892 is 2988619981.

It is a self number, because there is not a number n which added to its sum of digits gives 1899168892.

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, 703092 + ... + 705787.

Almost surely, 2^1899168892 is an apocalyptic number.

It is an amenable number.

1899168892 is a deficient number, since it is larger than the sum of its proper divisors (1434241188).

1899168892 is a wasteful number, since it uses less digits than its factorization.

1899168892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1409220 (or 1409218 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 61.

The square root of 1899168892 is about 43579.4549300470. The cubic root of 1899168892 is about 1238.3817104742.

The spelling of 1899168892 in words is "one billion, eight hundred ninety-nine million, one hundred sixty-eight thousand, eight hundred ninety-two".