1999513376 has 48 divisors (see below), whose sum is σ = 4517694720. Its totient is φ = 853355520.

The previous prime is 1999513357. The next prime is 1999513381. The reversal of 1999513376 is 6733159991.

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, 35465 + ... + 72503.

It is an arithmetic number, because the mean of its divisors is an integer number (94118640).

Almost surely, 2^1999513376 is an apocalyptic number.

1999513376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1999513376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2258847360).

1999513376 is an abundant number, since it is smaller than the sum of its proper divisors (2518181344).

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

1999513376 is a wasteful number, since it uses less digits than its factorization.

1999513376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37297 (or 37289 counting only the distinct ones).

The product of its digits is 1377810, while the sum is 53.

The square root of 1999513376 is about 44715.9185972960. The cubic root of 1999513376 is about 1259.8188569693.

The spelling of 1999513376 in words is "one billion, nine hundred ninety-nine million, five hundred thirteen thousand, three hundred seventy-six".