992042457 has 8 divisors (see below), whose sum is σ = 1511683776. Its totient is φ = 566881392.

The previous prime is 992042449. The next prime is 992042539. The reversal of 992042457 is 754240299.

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

It is not a de Polignac number, because 992042457 - 2³ = 992042449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (992042657) 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, 23620038 + ... + 23620079.

It is an arithmetic number, because the mean of its divisors is an integer number (188960472).

Almost surely, 2^992042457 is an apocalyptic number.

It is an amenable number.

992042457 is a deficient number, since it is larger than the sum of its proper divisors (519641319).

992042457 is a wasteful number, since it uses less digits than its factorization.

992042457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47240127.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 992042457 is about 31496.7054943846. The cubic root of 992042457 is about 997.3404185640.

The spelling of 992042457 in words is "nine hundred ninety-two million, forty-two thousand, four hundred fifty-seven".