1992190 has 32 divisors (see below), whose sum is σ = 3792096. Its totient is φ = 752640.

The previous prime is 1992181. The next prime is 1992197. The reversal of 1992190 is 912991.

It is a super-2 number, since 2×1992190² = 7937641992200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1992197) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17574 + ... + 17686.

It is an arithmetic number, because the mean of its divisors is an integer number (118503).

2^1992190 is an apocalyptic number.

1992190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1992190 is a deficient number, since it is larger than the sum of its proper divisors (1799906).

1992190 is a wasteful number, since it uses less digits than its factorization.

1992190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204.

The product of its (nonzero) digits is 1458, while the sum is 31.

The square root of 1992190 is about 1411.4496094441. The cubic root of 1992190 is about 125.8278913289.

The spelling of 1992190 in words is "one million, nine hundred ninety-two thousand, one hundred ninety".