990948 has 48 divisors (see below), whose sum is σ = 2709504. Its totient is φ = 276000.

The previous prime is 990923. The next prime is 990953. The reversal of 990948 is 849099.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3823 + ... + 4073.

It is an arithmetic number, because the mean of its divisors is an integer number (56448).

2⁹⁹⁰⁹⁴⁸ 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 990948, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1354752).

990948 is an abundant number, since it is smaller than the sum of its proper divisors (1718556).

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

990948 is a wasteful number, since it uses less digits than its factorization.

990948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312 (or 310 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 990948 is about 995.4637110412. The cubic root of 990948 is about 99.6973516304.

The spelling of 990948 in words is "nine hundred ninety thousand, nine hundred forty-eight".