1992318558 has 16 divisors (see below), whose sum is σ = 4157882496. Its totient is φ = 635231960.

The previous prime is 1992318557. The next prime is 1992318563. The reversal of 1992318558 is 8558132991.

It is a self number, because there is not a number n which added to its sum of digits gives 1992318558.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1992318551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7218408 + ... + 7218683.

It is an arithmetic number, because the mean of its divisors is an integer number (259867656).

Almost surely, 2^1992318558 is an apocalyptic number.

1992318558 is an abundant number, since it is smaller than the sum of its proper divisors (2165563938).

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

1992318558 is a wasteful number, since it uses less digits than its factorization.

1992318558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14437119.

The product of its digits is 777600, while the sum is 51.

The square root of 1992318558 is about 44635.3957975058. The cubic root of 1992318558 is about 1258.3059787026.

The spelling of 1992318558 in words is "one billion, nine hundred ninety-two million, three hundred eighteen thousand, five hundred fifty-eight".