1992270080 has 72 divisors (see below), whose sum is σ = 5023334400. Its totient is φ = 754956288.

The previous prime is 1992270079. The next prime is 1992270089. The reversal of 1992270080 is 800722991.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (1992270089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16640 + ... + 65279.

Almost surely, 2^1992270080 is an apocalyptic number.

1992270080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1992270080 is an abundant number, since it is smaller than the sum of its proper divisors (3031064320).

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

1992270080 is an equidigital number, since it uses as much as digits as its factorization.

1992270080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81959 (or 81945 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 1992270080 is about 44634.8527498411. The cubic root of 1992270080 is about 1258.2957727289.

The spelling of 1992270080 in words is "one billion, nine hundred ninety-two million, two hundred seventy thousand, eighty".