2193888 has 24 divisors (see below), whose sum is σ = 5759208. Its totient is φ = 731264.

The previous prime is 2193887. The next prime is 2193889. The reversal of 2193888 is 8883912.

It is an interprime number because it is at equal distance from previous prime (2193887) and next prime (2193889).

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2193881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11331 + ... + 11522.

It is an arithmetic number, because the mean of its divisors is an integer number (239967).

2^2193888 is an apocalyptic number.

It is an amenable number.

2193888 is an abundant number, since it is smaller than the sum of its proper divisors (3565320).

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

2193888 is a wasteful number, since it uses less digits than its factorization.

2193888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22866 (or 22858 counting only the distinct ones).

The product of its digits is 27648, while the sum is 39.

The square root of 2193888 is about 1481.1779096381. The cubic root of 2193888 is about 129.9385903251.

It can be divided in two parts, 2193 and 888, that added together give a triangular number (3081 = T₇₈).

The spelling of 2193888 in words is "two million, one hundred ninety-three thousand, eight hundred eighty-eight".