990158848 has 112 divisors (see below), whose sum is σ = 2340278784. Its totient is φ = 409927680.

The previous prime is 990158833. The next prime is 990158849. The reversal of 990158848 is 848851099.

It is a tau number, because it is divible by the number of its divisors (112).

It is a junction number, because it is equal to n+sod(n) for n = 990158795 and 990158804.

It is not an unprimeable number, because it can be changed into a prime (990158849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1777386 + ... + 1777942.

Almost surely, 2^990158848 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 990158848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1170139392).

990158848 is an abundant number, since it is smaller than the sum of its proper divisors (1350119936).

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

990158848 is an equidigital number, since it uses as much as digits as its factorization.

990158848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621 (or 597 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 52.

The square root of 990158848 is about 31466.7896042796. The cubic root of 990158848 is about 996.7087958588.

The spelling of 990158848 in words is "nine hundred ninety million, one hundred fifty-eight thousand, eight hundred forty-eight".