992409231 has 64 divisors (see below), whose sum is σ = 1537191936. Its totient is φ = 564019200.

The previous prime is 992409193. The next prime is 992409239. The reversal of 992409231 is 132904299.

It is not a de Polignac number, because 992409231 - 2⁶ = 992409167 is a prime.

It is a super-2 number, since 2×992409231² = 1969752163548022722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 992409231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (992409239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7243795 + ... + 7243931.

It is an arithmetic number, because the mean of its divisors is an integer number (24018624).

Almost surely, 2^992409231 is an apocalyptic number.

992409231 is a deficient number, since it is larger than the sum of its proper divisors (544782705).

992409231 is a wasteful number, since it uses less digits than its factorization.

992409231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352.

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 992409231 is about 31502.5273747996. The cubic root of 992409231 is about 997.4633143335.

The spelling of 992409231 in words is "nine hundred ninety-two million, four hundred nine thousand, two hundred thirty-one".