323890 has 24 divisors (see below), whose sum is σ = 679212. Its totient is φ = 110880.

The previous prime is 323879. The next prime is 323899. The reversal of 323890 is 98323.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 321489 + 2401 = 567^2 + 49^2 .

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (323899) by changing a digit.

323890 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 11 ways as a sum of consecutive naturals, for example, 160 + ... + 820.

2³²³⁸⁹⁰ is an apocalyptic number.

323890 is an abundant number, since it is smaller than the sum of its proper divisors (355322).

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

323890 is a wasteful number, since it uses less digits than its factorization.

323890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682 (or 675 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 323890 is about 569.1133454770. The cubic root of 323890 is about 68.6750809224.

The spelling of 323890 in words is "three hundred twenty-three thousand, eight hundred ninety".