998408008 has 32 divisors (see below), whose sum is σ = 2019540600. Its totient is φ = 459998208.

The previous prime is 998407999. The next prime is 998408009. The reversal of 998408008 is 800804899.

It can be written as a sum of positive squares in 4 ways, for example, as 733434724 + 264973284 = 27082^2 + 16278^2 .

It is not an unprimeable number, because it can be changed into a prime (998408009) 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, 53578 + ... + 69766.

Almost surely, 2^998408008 is an apocalyptic number.

It is an amenable number.

998408008 is an abundant number, since it is smaller than the sum of its proper divisors (1021132592).

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

998408008 is a wasteful number, since it uses less digits than its factorization.

998408008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16801 (or 16797 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 46.

The square root of 998408008 is about 31597.5949717696. The cubic root of 998408008 is about 999.4690541464.

The spelling of 998408008 in words is "nine hundred ninety-eight million, four hundred eight thousand, eight".