1992020 has 24 divisors (see below), whose sum is σ = 4228224. Its totient is φ = 788256.

The previous prime is 1991999. The next prime is 1992031. The reversal of 1992020 is 202991.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1577 + ... + 2543.

It is an arithmetic number, because the mean of its divisors is an integer number (176176).

2^1992020 is an apocalyptic number.

1992020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1992020 is an abundant number, since it is smaller than the sum of its proper divisors (2236204).

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

1992020 is a wasteful number, since it uses less digits than its factorization.

1992020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1079 (or 1077 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 1992020 is about 1411.3893863849. The cubic root of 1992020 is about 125.8243121271.

The spelling of 1992020 in words is "one million, nine hundred ninety-two thousand, twenty".