1992558 has 16 divisors (see below), whose sum is σ = 4001616. Its totient is φ = 661440.

The previous prime is 1992547. The next prime is 1992563. The reversal of 1992558 is 8552991.

It is a congruent 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, 1348 + ... + 2408.

It is an arithmetic number, because the mean of its divisors is an integer number (250101).

2^1992558 is an apocalyptic number.

1992558 is an abundant number, since it is smaller than the sum of its proper divisors (2009058).

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

1992558 is a wasteful number, since it uses less digits than its factorization.

1992558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379.

The product of its digits is 32400, while the sum is 39.

The square root of 1992558 is about 1411.5799658539. The cubic root of 1992558 is about 125.8356385506.

The spelling of 1992558 in words is "one million, nine hundred ninety-two thousand, five hundred fifty-eight".