992448981 has 24 divisors (see below), whose sum is σ = 1451463936. Its totient is φ = 653395680.

The previous prime is 992448979. The next prime is 992448997. The reversal of 992448981 is 189844299.

It is not a de Polignac number, because 992448981 - 2¹ = 992448979 is a prime.

It is a super-2 number, since 2×992448981² = 1969909959775876722, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (992448931) 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 23 ways as a sum of consecutive naturals, for example, 388996 + ... + 391538.

It is an arithmetic number, because the mean of its divisors is an integer number (60477664).

Almost surely, 2^992448981 is an apocalyptic number.

It is an amenable number.

992448981 is a deficient number, since it is larger than the sum of its proper divisors (459014955).

992448981 is a wasteful number, since it uses less digits than its factorization.

992448981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3073 (or 3070 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 54.

The square root of 992448981 is about 31503.1582702433. The cubic root of 992448981 is about 997.4766316345.

The spelling of 992448981 in words is "nine hundred ninety-two million, four hundred forty-eight thousand, nine hundred eighty-one".