1999393200 has 480 divisors, whose sum is σ = 8303040000. Its totient is φ = 447482880.

The previous prime is 1999393189. The next prime is 1999393217. The reversal of 1999393200 is 23939991.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4006551 + ... + 4007049.

It is an arithmetic number, because the mean of its divisors is an integer number (17298000).

Almost surely, 2^1999393200 is an apocalyptic number.

1999393200 is a gapful number since it is divisible by the number (10) 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 1999393200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4151520000).

1999393200 is an abundant number, since it is smaller than the sum of its proper divisors (6303646800).

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

1999393200 is a wasteful number, since it uses less digits than its factorization.

1999393200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586 (or 569 counting only the distinct ones).

The product of its (nonzero) digits is 118098, while the sum is 45.

The square root of 1999393200 is about 44714.5748050901. The cubic root of 1999393200 is about 1259.7936169908.

The spelling of 1999393200 in words is "one billion, nine hundred ninety-nine million, three hundred ninety-three thousand, two hundred".