1331868 has 12 divisors (see below), whose sum is σ = 3107720. Its totient is φ = 443952.

The previous prime is 1331857. The next prime is 1331921. The reversal of 1331868 is 8681331.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55483 + ... + 55506.

2^1331868 is an apocalyptic number.

It is an amenable number.

1331868 is an abundant number, since it is smaller than the sum of its proper divisors (1775852).

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

1331868 is a wasteful number, since it uses less digits than its factorization.

1331868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110996 (or 110994 counting only the distinct ones).

The product of its digits is 3456, while the sum is 30.

The square root of 1331868 is about 1154.0658560065. The cubic root of 1331868 is about 110.0239066496.

The spelling of 1331868 in words is "one million, three hundred thirty-one thousand, eight hundred sixty-eight".