1899996192 has 36 divisors (see below), whose sum is σ = 5403114990. Its totient is φ = 633331968.

The previous prime is 1899996187. The next prime is 1899996193. The reversal of 1899996192 is 2916999981.

1899996192 is a `hidden beast` number, since 1 + 8 + 9 + 9 + 9 + 9 + 619 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1590095376 + 309900816 = 39876^2 + 17604^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1899996192² = 7219971059229001728, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1899996193) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3298317 + ... + 3298892.

Almost surely, 2^1899996192 is an apocalyptic number.

1899996192 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1899996192 is an abundant number, since it is smaller than the sum of its proper divisors (3503118798).

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

1899996192 is a wasteful number, since it uses less digits than its factorization.

1899996192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6597225 (or 6597214 counting only the distinct ones).

The product of its digits is 5668704, while the sum is 63.

The square root of 1899996192 is about 43588.9457546291. The cubic root of 1899996192 is about 1238.5615021831.

The spelling of 1899996192 in words is "one billion, eight hundred ninety-nine million, nine hundred ninety-six thousand, one hundred ninety-two".