331366 has 8 divisors (see below), whose sum is σ = 568080. Its totient is φ = 142008.

The previous prime is 331349. The next prime is 331367. The reversal of 331366 is 663133.

It is a happy number.

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 (331367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11821 + ... + 11848.

It is an arithmetic number, because the mean of its divisors is an integer number (71010).

2³³¹³⁶⁶ is an apocalyptic number.

331366 is a deficient number, since it is larger than the sum of its proper divisors (236714).

331366 is a wasteful number, since it uses less digits than its factorization.

331366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23678.

The product of its digits is 972, while the sum is 22.

The square root of 331366 is about 575.6439872004. The cubic root of 331366 is about 69.1994509184.

Adding to 331366 its reverse (663133), we get a palindrome (994499).

The spelling of 331366 in words is "three hundred thirty-one thousand, three hundred sixty-six".