1992146 has 16 divisors (see below), whose sum is σ = 3242904. Its totient is φ = 912384.

The previous prime is 1992139. The next prime is 1992163. The reversal of 1992146 is 6412991.

It can be written as a sum of positive squares in 4 ways, for example, as 1288225 + 703921 = 1135^2 + 839^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4820 + ... + 5216.

2^1992146 is an apocalyptic number.

1992146 is a deficient number, since it is larger than the sum of its proper divisors (1250758).

1992146 is a wasteful number, since it uses less digits than its factorization.

1992146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605.

The product of its digits is 3888, while the sum is 32.

The square root of 1992146 is about 1411.4340225459. The cubic root of 1992146 is about 125.8269649668.

The spelling of 1992146 in words is "one million, nine hundred ninety-two thousand, one hundred forty-six".