1992426289 has 16 divisors (see below), whose sum is σ = 2333267200. Its totient is φ = 1700637120.

The previous prime is 1992426287. The next prime is 1992426301. The reversal of 1992426289 is 9826242991.

It is not a de Polignac number, because 1992426289 - 2¹ = 1992426287 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1992426287) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 70612 + ... + 94714.

It is an arithmetic number, because the mean of its divisors is an integer number (145829200).

Almost surely, 2^1992426289 is an apocalyptic number.

It is an amenable number.

1992426289 is a deficient number, since it is larger than the sum of its proper divisors (340840911).

1992426289 is an equidigital number, since it uses as much as digits as its factorization.

1992426289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24365 (or 24351 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 52.

The square root of 1992426289 is about 44636.6025700881. The cubic root of 1992426289 is about 1258.3286584957.

The spelling of 1992426289 in words is "one billion, nine hundred ninety-two million, four hundred twenty-six thousand, two hundred eighty-nine".