1992456 has 24 divisors (see below), whose sum is σ = 5396430. Its totient is φ = 664128.

The previous prime is 1992439. The next prime is 1992469. The reversal of 1992456 is 6542991.

It can be written as a sum of positive squares in only one way, i.e., 1988100 + 4356 = 1410^2 + 66^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a d-powerful number, because it can be written as 1 + 9⁴ + 9⁴ + 2¹¹ + 4⁷ + 5⁹ + 6⁵ .

It is a self number, because there is not a number n which added to its sum of digits gives 1992456.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13765 + ... + 13908.

2^1992456 is an apocalyptic number.

It is an amenable number.

1992456 is an abundant number, since it is smaller than the sum of its proper divisors (3403974).

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

1992456 is a wasteful number, since it uses less digits than its factorization.

1992456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27685 (or 27678 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 1992456 is about 1411.5438356636. The cubic root of 1992456 is about 125.8334913184.

The spelling of 1992456 in words is "one million, nine hundred ninety-two thousand, four hundred fifty-six".