998930880 has 280 divisors, whose sum is σ = 3764054448. Its totient is φ = 250601472.

The previous prime is 998930873. The next prime is 998930923. The reversal of 998930880 is 88039899.

998930880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 439507 + ... + 441773.

Almost surely, 2^998930880 is an apocalyptic number.

998930880 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 998930880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1882027224).

998930880 is an abundant number, since it is smaller than the sum of its proper divisors (2765123568).

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

998930880 is a wasteful number, since it uses less digits than its factorization.

998930880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2313 (or 2294 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 54.

The square root of 998930880 is about 31605.8678096331. The cubic root of 998930880 is about 999.6434995892.

The spelling of 998930880 in words is "nine hundred ninety-eight million, nine hundred thirty thousand, eight hundred eighty".