1992239357 has 8 divisors (see below), whose sum is σ = 2097866400. Its totient is φ = 1886689584.

The previous prime is 1992239311. The next prime is 1992239377. The reversal of 1992239357 is 7539322991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1992239357 - 2¹⁸ = 1991977213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1992239377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38003 + ... + 73679.

It is an arithmetic number, because the mean of its divisors is an integer number (262233300).

Almost surely, 2^1992239357 is an apocalyptic number.

It is an amenable number.

1992239357 is a deficient number, since it is larger than the sum of its proper divisors (105627043).

1992239357 is a wasteful number, since it uses less digits than its factorization.

1992239357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38635.

The product of its digits is 918540, while the sum is 50.

The square root of 1992239357 is about 44634.5085892071. The cubic root of 1992239357 is about 1258.2893045932.

The spelling of 1992239357 in words is "one billion, nine hundred ninety-two million, two hundred thirty-nine thousand, three hundred fifty-seven".