2011868 has 12 divisors (see below), whose sum is σ = 3537072. Its totient is φ = 1001280.

The previous prime is 2011861. The next prime is 2011897. The reversal of 2011868 is 8681102.

It is a super-2 number, since 2×2011868² = 8095225698848, which contains 22 as substring.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80 + ... + 2007.

It is an arithmetic number, because the mean of its divisors is an integer number (294756).

2^2011868 is an apocalyptic number.

It is an amenable number.

2011868 is a deficient number, since it is larger than the sum of its proper divisors (1525204).

2011868 is a wasteful number, since it uses less digits than its factorization.

2011868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2332 (or 2330 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 2011868 is about 1418.4033276893. The cubic root of 2011868 is about 126.2408260497.

The spelling of 2011868 in words is "two million, eleven thousand, eight hundred sixty-eight".