322990 has 8 divisors (see below), whose sum is σ = 581400. Its totient is φ = 129192.

The previous prime is 322969. The next prime is 322997. The reversal of 322990 is 99223.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (322997) by changing a digit.

322990 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, 16140 + ... + 16159.

It is an arithmetic number, because the mean of its divisors is an integer number (72675).

2³²²⁹⁹⁰ is an apocalyptic number.

322990 is a deficient number, since it is larger than the sum of its proper divisors (258410).

322990 is a wasteful number, since it uses less digits than its factorization.

322990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32306.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 322990 is about 568.3220917754. The cubic root of 322990 is about 68.6114122797.

The spelling of 322990 in words is "three hundred twenty-two thousand, nine hundred ninety".