990330 has 32 divisors (see below), whose sum is σ = 2593728. Its totient is φ = 240000.

The previous prime is 990329. The next prime is 990331. The reversal of 990330 is 33099.

It is an interprime number because it is at equal distance from previous prime (990329) and next prime (990331).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 990330.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1171 + ... + 1830.

It is an arithmetic number, because the mean of its divisors is an integer number (81054).

2⁹⁹⁰³³⁰ is an apocalyptic number.

990330 is an abundant number, since it is smaller than the sum of its proper divisors (1603398).

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

990330 is a wasteful number, since it uses less digits than its factorization.

990330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3022.

The product of its (nonzero) digits is 729, while the sum is 24.

The square root of 990330 is about 995.1532545292. The cubic root of 990330 is about 99.6766220610.

The spelling of 990330 in words is "nine hundred ninety thousand, three hundred thirty".