1992280 has 16 divisors (see below), whose sum is σ = 4482720. Its totient is φ = 796896.

The previous prime is 1992269. The next prime is 1992299. The reversal of 1992280 is 822991.

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 3 ways as a sum of consecutive naturals, for example, 24864 + ... + 24943.

It is an arithmetic number, because the mean of its divisors is an integer number (280170).

2^1992280 is an apocalyptic number.

1992280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1992280 is an abundant number, since it is smaller than the sum of its proper divisors (2490440).

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

1992280 is a wasteful number, since it uses less digits than its factorization.

1992280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49818 (or 49814 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 1992280 is about 1411.4814911999. The cubic root of 1992280 is about 125.8297861180.

It can be divided in two parts, 19922 and 80, that added together give a palindrome (20002).

The spelling of 1992280 in words is "one million, nine hundred ninety-two thousand, two hundred eighty".