990453828 has 96 divisors (see below), whose sum is σ = 2891203840. Its totient is φ = 256919040.

The previous prime is 990453817. The next prime is 990453839. The reversal of 990453828 is 828354099.

It is an interprime number because it is at equal distance from previous prime (990453817) and next prime (990453839).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59178 + ... + 74046.

Almost surely, 2^990453828 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 990453828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1445601920).

990453828 is an abundant number, since it is smaller than the sum of its proper divisors (1900750012).

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

990453828 is a wasteful number, since it uses less digits than its factorization.

990453828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14957 (or 14955 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 48.

The square root of 990453828 is about 31471.4764191323. The cubic root of 990453828 is about 996.8077631338.

The spelling of 990453828 in words is "nine hundred ninety million, four hundred fifty-three thousand, eight hundred twenty-eight".