1899090318 has 48 divisors (see below), whose sum is σ = 4138062336. Its totient is φ = 580346640.

The previous prime is 1899090293. The next prime is 1899090331. The reversal of 1899090318 is 8130909981.

It is a super-2 number, since 2×1899090318² = 7213088071842682248, 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 23 ways as a sum of consecutive naturals, for example, 53005 + ... + 81287.

It is an arithmetic number, because the mean of its divisors is an integer number (86209632).

Almost surely, 2^1899090318 is an apocalyptic number.

1899090318 is an abundant number, since it is smaller than the sum of its proper divisors (2238972018).

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

1899090318 is a wasteful number, since it uses less digits than its factorization.

1899090318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28357 (or 28338 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 48.

The square root of 1899090318 is about 43578.5534179371. The cubic root of 1899090318 is about 1238.3646317848.

The spelling of 1899090318 in words is "one billion, eight hundred ninety-nine million, ninety thousand, three hundred eighteen".