1992803904 has 896 divisors, whose sum is σ = 8193024000. Its totient is φ = 459841536.

The previous prime is 1992803873. The next prime is 1992803909. The reversal of 1992803904 is 4093082991.

It is a self number, because there is not a number n which added to its sum of digits gives 1992803904.

It is not an unprimeable number, because it can be changed into a prime (1992803909) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 68717362 + ... + 68717390.

It is an arithmetic number, because the mean of its divisors is an integer number (9144000).

Almost surely, 2^1992803904 is an apocalyptic number.

1992803904 is a gapful number since it is divisible by the number (14) 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 1992803904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4096512000).

1992803904 is an abundant number, since it is smaller than the sum of its proper divisors (6200220096).

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

1992803904 is a wasteful number, since it uses less digits than its factorization.

1992803904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 1992803904 is about 44640.8322503064. The cubic root of 1992803904 is about 1258.4081484729.

The spelling of 1992803904 in words is "one billion, nine hundred ninety-two million, eight hundred three thousand, nine hundred four".