800998380 has 288 divisors, whose sum is σ = 3033139200. Its totient is φ = 166593024.

The previous prime is 800998361. The next prime is 800998399. The reversal of 800998380 is 83899008.

It is an interprime number because it is at equal distance from previous prime (800998361) and next prime (800998399).

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

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 1293711 + ... + 1294329.

Almost surely, 2^800998380 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 800998380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1516569600).

800998380 is an abundant number, since it is smaller than the sum of its proper divisors (2232140820).

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

800998380 is a wasteful number, since it uses less digits than its factorization.

800998380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733 (or 728 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 800998380 is about 28301.9147762126. The cubic root of 800998380 is about 928.7037786443.

The spelling of 800998380 in words is "eight hundred million, nine hundred ninety-eight thousand, three hundred eighty".