1992042 has 24 divisors (see below), whose sum is σ = 4648644. Its totient is φ = 612864.

The previous prime is 1992041. The next prime is 1992049. The reversal of 1992042 is 2402991.

It can be written as a sum of positive squares in 2 ways, for example, as 1962801 + 29241 = 1401^2 + 171^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1991997 and 1992015.

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

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4023 + ... + 4490.

2^1992042 is an apocalyptic number.

1992042 is an abundant number, since it is smaller than the sum of its proper divisors (2656602).

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

1992042 is a wasteful number, since it uses less digits than its factorization.

1992042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8534 (or 8531 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 1992042 is about 1411.3971801020. The cubic root of 1992042 is about 125.8247753294.

The spelling of 1992042 in words is "one million, nine hundred ninety-two thousand, forty-two".