998886400 has 66 divisors (see below), whose sum is σ = 2476092140. Its totient is φ = 399544320.

The previous prime is 998886367. The next prime is 998886419. The reversal of 998886400 is 4688899.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is a nialpdrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6091 + ... + 45109.

Almost surely, 2^998886400 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 998886400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1238046070).

998886400 is an abundant number, since it is smaller than the sum of its proper divisors (1477205740).

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

998886400 is a wasteful number, since it uses less digits than its factorization.

998886400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39049 (or 39026 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 52.

The square root of 998886400 is about 31605.1641349954. The cubic root of 998886400 is about 999.6286621253.

The spelling of 998886400 in words is "nine hundred ninety-eight million, eight hundred eighty-six thousand, four hundred".