992799440 has 40 divisors (see below), whose sum is σ = 2309852160. Its totient is φ = 396845696.

The previous prime is 992799421. The next prime is 992799443. The reversal of 992799440 is 44997299.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (992799443) 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, 144401 + ... + 151119.

It is an arithmetic number, because the mean of its divisors is an integer number (57746304).

Almost surely, 2^992799440 is an apocalyptic number.

It is an amenable number.

992799440 is an abundant number, since it is smaller than the sum of its proper divisors (1317052720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

992799440 is a wasteful number, since it uses less digits than its factorization.

992799440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8579 (or 8573 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 53.

The square root of 992799440 is about 31508.7200628651. The cubic root of 992799440 is about 997.5940292807.

The spelling of 992799440 in words is "nine hundred ninety-two million, seven hundred ninety-nine thousand, four hundred forty".