1992190373 has 4 divisors (see below), whose sum is σ = 2109378060. Its totient is φ = 1875002688.

The previous prime is 1992190331. The next prime is 1992190429. The reversal of 1992190373 is 3730912991.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3730912991 = 13 ⋅286993307.

It can be written as a sum of positive squares in 2 ways, for example, as 894129604 + 1098060769 = 29902^2 + 33137^2 .

It is a cyclic number.

It is not a de Polignac number, because 1992190373 - 2²⁰ = 1991141797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1992190313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58593818 + ... + 58593851.

It is an arithmetic number, because the mean of its divisors is an integer number (527344515).

Almost surely, 2^1992190373 is an apocalyptic number.

It is an amenable number.

1992190373 is a deficient number, since it is larger than the sum of its proper divisors (117187687).

1992190373 is a wasteful number, since it uses less digits than its factorization.

1992190373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117187686.

The product of its (nonzero) digits is 91854, while the sum is 44.

The square root of 1992190373 is about 44633.9598624187. The cubic root of 1992190373 is about 1258.2789918183.

The spelling of 1992190373 in words is "one billion, nine hundred ninety-two million, one hundred ninety thousand, three hundred seventy-three".