331894 has 4 divisors (see below), whose sum is σ = 497844. Its totient is φ = 165946.

The previous prime is 331889. The next prime is 331897. The reversal of 331894 is 498133.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×331894² = 220307254472, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82972 + ... + 82975.

It is an arithmetic number, because the mean of its divisors is an integer number (124461).

2³³¹⁸⁹⁴ is an apocalyptic number.

331894 is a deficient number, since it is larger than the sum of its proper divisors (165950).

331894 is a wasteful number, since it uses less digits than its factorization.

331894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165949.

The product of its digits is 2592, while the sum is 28.

The square root of 331894 is about 576.1024214495. The cubic root of 331894 is about 69.2361856478.

It can be divided in two parts, 331 and 894, that added together give a triangular number (1225 = T₄₉).

The spelling of 331894 in words is "three hundred thirty-one thousand, eight hundred ninety-four".