1999304112 has 40 divisors (see below), whose sum is σ = 5562168304. Its totient is φ = 615170304.

The previous prime is 1999304081. The next prime is 1999304147. The reversal of 1999304112 is 2114039991.

It is a Harshad number since it is a multiple of its sum of digits (39).

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, 1601383 + ... + 1602630.

Almost surely, 2^1999304112 is an apocalyptic number.

1999304112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1999304112 is an abundant number, since it is smaller than the sum of its proper divisors (3562864192).

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

1999304112 is a wasteful number, since it uses less digits than its factorization.

1999304112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3204037 (or 3204031 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 39.

The square root of 1999304112 is about 44713.5786087403. The cubic root of 1999304112 is about 1259.7749056203.

The spelling of 1999304112 in words is "one billion, nine hundred ninety-nine million, three hundred four thousand, one hundred twelve".