1999717104 has 80 divisors (see below), whose sum is σ = 6440659200. Its totient is φ = 519406080.

The previous prime is 1999717061. The next prime is 1999717121. The reversal of 1999717104 is 4017179991.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 266829 + ... + 274220.

It is an arithmetic number, because the mean of its divisors is an integer number (80508240).

Almost surely, 2^1999717104 is an apocalyptic number.

1999717104 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1999717104 is an abundant number, since it is smaller than the sum of its proper divisors (4440942096).

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

1999717104 is a wasteful number, since it uses less digits than its factorization.

1999717104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541078 (or 541072 counting only the distinct ones).

The product of its (nonzero) digits is 142884, while the sum is 48.

The square root of 1999717104 is about 44718.1965647095. The cubic root of 1999717104 is about 1259.8616426562.

The spelling of 1999717104 in words is "one billion, nine hundred ninety-nine million, seven hundred seventeen thousand, one hundred four".