331642 has 8 divisors (see below), whose sum is σ = 504000. Its totient is φ = 163644.

The previous prime is 331613. The next prime is 331651. The reversal of 331642 is 246133.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 892 + ... + 1207.

It is an arithmetic number, because the mean of its divisors is an integer number (63000).

2³³¹⁶⁴² is an apocalyptic number.

331642 is a deficient number, since it is larger than the sum of its proper divisors (172358).

331642 is a wasteful number, since it uses less digits than its factorization.

331642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2180.

The product of its digits is 432, while the sum is 19.

The square root of 331642 is about 575.8836688082. The cubic root of 331642 is about 69.2186580270.

Adding to 331642 its reverse (246133), we get a palindrome (577775).

The spelling of 331642 in words is "three hundred thirty-one thousand, six hundred forty-two".