1992556 has 12 divisors (see below), whose sum is σ = 3599680. Its totient is φ = 964080.

The previous prime is 1992547. The next prime is 1992563. The reversal of 1992556 is 6552991.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 7911 + ... + 8158.

2^1992556 is an apocalyptic number.

It is an amenable number.

1992556 is a deficient number, since it is larger than the sum of its proper divisors (1607124).

1992556 is a wasteful number, since it uses less digits than its factorization.

1992556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16104 (or 16102 counting only the distinct ones).

The product of its digits is 24300, while the sum is 37.

The square root of 1992556 is about 1411.5792574277. The cubic root of 1992556 is about 125.8355964487.

The spelling of 1992556 in words is "one million, nine hundred ninety-two thousand, five hundred fifty-six".