2111888 has 20 divisors (see below), whose sum is σ = 4307760. Its totient is φ = 1000224.

The previous prime is 2111873. The next prime is 2111897. The reversal of 2111888 is 8881112.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 2111888.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3170 + ... + 3777.

It is an arithmetic number, because the mean of its divisors is an integer number (215388).

2^2111888 is an apocalyptic number.

It is an amenable number.

2111888 is an abundant number, since it is smaller than the sum of its proper divisors (2195872).

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

2111888 is a wasteful number, since it uses less digits than its factorization.

2111888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6974 (or 6968 counting only the distinct ones).

The product of its digits is 1024, while the sum is 29.

The square root of 2111888 is about 1453.2336357241. The cubic root of 2111888 is about 128.2991052062.

The spelling of 2111888 in words is "two million, one hundred eleven thousand, eight hundred eighty-eight".