990344 has 16 divisors (see below), whose sum is σ = 1881600. Its totient is φ = 488592.

The previous prime is 990331. The next prime is 990349. The reversal of 990344 is 443099.

It is a happy number.

It is a congruent number.

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

990344 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152 + ... + 1415.

It is an arithmetic number, because the mean of its divisors is an integer number (117600).

2⁹⁹⁰³⁴⁴ is an apocalyptic number.

It is an amenable number.

990344 is a deficient number, since it is larger than the sum of its proper divisors (891256).

990344 is a wasteful number, since it uses less digits than its factorization.

990344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1652 (or 1648 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 990344 is about 995.1602885968. The cubic root of 990344 is about 99.6770917583.

The spelling of 990344 in words is "nine hundred ninety thousand, three hundred forty-four".