990358200 has 144 divisors (see below), whose sum is σ = 3581880120. Its totient is φ = 243774720.

The previous prime is 990358183. The next prime is 990358253. The reversal of 990358200 is 2853099.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2239 + ... + 44561.

Almost surely, 2^990358200 is an apocalyptic number.

990358200 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 990358200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1790940060).

990358200 is an abundant number, since it is smaller than the sum of its proper divisors (2591521920).

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

990358200 is a wasteful number, since it uses less digits than its factorization.

990358200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42358 (or 42346 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 990358200 is about 31469.9571019727. The cubic root of 990358200 is about 996.7756816112.

The spelling of 990358200 in words is "nine hundred ninety million, three hundred fifty-eight thousand, two hundred".