1992856000 has 56 divisors (see below), whose sum is σ = 4935327696. Its totient is φ = 797139200.

The previous prime is 1992855929. The next prime is 1992856009. The reversal of 1992856000 is 6582991.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1992856009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116554 + ... + 132553.

Almost surely, 2^1992856000 is an apocalyptic number.

1992856000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1992856000 is an abundant number, since it is smaller than the sum of its proper divisors (2942471696).

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

1992856000 is an equidigital number, since it uses as much as digits as its factorization.

1992856000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249134 (or 249114 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 1992856000 is about 44641.4157481592. The cubic root of 1992856000 is about 1258.4191141713.

The spelling of 1992856000 in words is "one billion, nine hundred ninety-two million, eight hundred fifty-six thousand".