990348 has 12 divisors (see below), whose sum is σ = 2310840. Its totient is φ = 330112.

The previous prime is 990331. The next prime is 990349. The reversal of 990348 is 843099.

990348 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×990348² = 1961578322208, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (990349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41253 + ... + 41276.

It is an arithmetic number, because the mean of its divisors is an integer number (192570).

2⁹⁹⁰³⁴⁸ is an apocalyptic number.

It is an amenable number.

990348 is an abundant number, since it is smaller than the sum of its proper divisors (1320492).

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

990348 is a wasteful number, since it uses less digits than its factorization.

990348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82536 (or 82534 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 990348 is about 995.1622983212. The cubic root of 990348 is about 99.6772259568.

The spelling of 990348 in words is "nine hundred ninety thousand, three hundred forty-eight".