1992133220 has 144 divisors (see below), whose sum is σ = 5335823808. Its totient is φ = 617783040.

The previous prime is 1992133193. The next prime is 1992133267. The reversal of 1992133220 is 223312991.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3050414 + ... + 3051066.

It is an arithmetic number, because the mean of its divisors is an integer number (37054332).

Almost surely, 2^1992133220 is an apocalyptic number.

1992133220 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 1992133220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2667911904).

1992133220 is an abundant number, since it is smaller than the sum of its proper divisors (3343690588).

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

1992133220 is a wasteful number, since it uses less digits than its factorization.

1992133220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970 (or 961 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 1992133220 is about 44633.3196166272. The cubic root of 1992133220 is about 1258.2669589811.

The spelling of 1992133220 in words is "one billion, nine hundred ninety-two million, one hundred thirty-three thousand, two hundred twenty".