323990 has 16 divisors (see below), whose sum is σ = 589680. Its totient is φ = 128160.

The previous prime is 323987. The next prime is 324011. The reversal of 323990 is 99323.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 323990.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1700 + ... + 1880.

It is an arithmetic number, because the mean of its divisors is an integer number (36855).

2³²³⁹⁹⁰ is an apocalyptic number.

323990 is a deficient number, since it is larger than the sum of its proper divisors (265690).

323990 is a wasteful number, since it uses less digits than its factorization.

323990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367.

The product of its (nonzero) digits is 1458, while the sum is 26.

The square root of 323990 is about 569.2011946579. The cubic root of 323990 is about 68.6821479322.

The spelling of 323990 in words is "three hundred twenty-three thousand, nine hundred ninety".