1899212980 has 24 divisors (see below), whose sum is σ = 4558111488. Its totient is φ = 651158688.

The previous prime is 1899212957. The next prime is 1899212993. The reversal of 1899212980 is 892129981.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 6782764 + ... + 6783043.

It is an arithmetic number, because the mean of its divisors is an integer number (189921312).

Almost surely, 2^1899212980 is an apocalyptic number.

1899212980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1899212980 is an abundant number, since it is smaller than the sum of its proper divisors (2658898508).

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

1899212980 is a wasteful number, since it uses less digits than its factorization.

1899212980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13565823 (or 13565821 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 49.

The square root of 1899212980 is about 43579.9607617997. The cubic root of 1899212980 is about 1238.3912931484.

The spelling of 1899212980 in words is "one billion, eight hundred ninety-nine million, two hundred twelve thousand, nine hundred eighty".