1992045 has 16 divisors (see below), whose sum is σ = 3477312. Its totient is φ = 965760.

The previous prime is 1992041. The next prime is 1992049. The reversal of 1992045 is 5402991.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1992041) and next prime (1992049).

It is not a de Polignac number, because 1992045 - 2² = 1992041 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1992041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5872 + ... + 6201.

It is an arithmetic number, because the mean of its divisors is an integer number (217332).

2^1992045 is an apocalyptic number.

1992045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1992045 is a deficient number, since it is larger than the sum of its proper divisors (1485267).

1992045 is a wasteful number, since it uses less digits than its factorization.

1992045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12092.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 1992045 is about 1411.3982428783. The cubic root of 1992045 is about 125.8248384931.

The spelling of 1992045 in words is "one million, nine hundred ninety-two thousand, forty-five".