998440996 has 12 divisors (see below), whose sum is σ = 1996882048. Its totient is φ = 427903272.

The previous prime is 998440987. The next prime is 998441027. The reversal of 998440996 is 699044899.

998440996 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 998440996.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17829276 + ... + 17829331.

Almost surely, 2^998440996 is an apocalyptic number.

It is an amenable number.

998440996 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

998440996 is a wasteful number, since it uses less digits than its factorization.

998440996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35658618 (or 35658616 counting only the distinct ones).

The product of its (nonzero) digits is 5038848, while the sum is 58.

The square root of 998440996 is about 31598.1169692119. The cubic root of 998440996 is about 999.4800617110.

The spelling of 998440996 in words is "nine hundred ninety-eight million, four hundred forty thousand, nine hundred ninety-six".