992078280 has 160 divisors (see below), whose sum is σ = 3362135040. Its totient is φ = 262362240.

The previous prime is 992078279. The next prime is 992078281. The reversal of 992078280 is 82870299.

992078280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (992078279) and next prime (992078281).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (992078281) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 410275 + ... + 412685.

It is an arithmetic number, because the mean of its divisors is an integer number (21013344).

Almost surely, 2^992078280 is an apocalyptic number.

992078280 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 992078280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1681067520).

992078280 is an abundant number, since it is smaller than the sum of its proper divisors (2370056760).

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

992078280 is a wasteful number, since it uses less digits than its factorization.

992078280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2561 (or 2548 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 992078280 is about 31497.2741677752. The cubic root of 992078280 is about 997.3524231899.

The spelling of 992078280 in words is "nine hundred ninety-two million, seventy-eight thousand, two hundred eighty".