998909496 has 240 divisors, whose sum is σ = 3212332200. Its totient is φ = 287494272.

The previous prime is 998909489. The next prime is 998909501. The reversal of 998909496 is 694909899.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 12644385 + ... + 12644463.

Almost surely, 2^998909496 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 998909496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1606166100).

998909496 is an abundant number, since it is smaller than the sum of its proper divisors (2213422704).

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

998909496 is a wasteful number, since it uses less digits than its factorization.

998909496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208 (or 116 counting only the distinct ones).

The product of its (nonzero) digits is 11337408, while the sum is 63.

The square root of 998909496 is about 31605.5295162097. The cubic root of 998909496 is about 999.6363664533.

The spelling of 998909496 in words is "nine hundred ninety-eight million, nine hundred nine thousand, four hundred ninety-six".