2188473 has 24 divisors (see below), whose sum is σ = 3503808. Its totient is φ = 1190112.

The previous prime is 2188463. The next prime is 2188481. The reversal of 2188473 is 3748812.

It is not a de Polignac number, because 2188473 - 2⁶ = 2188409 is a prime.

It is an Ulam number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2188463) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11011 + ... + 11207.

It is an arithmetic number, because the mean of its divisors is an integer number (145992).

2^2188473 is an apocalyptic number.

2188473 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2188473 is a deficient number, since it is larger than the sum of its proper divisors (1315335).

2188473 is a wasteful number, since it uses less digits than its factorization.

2188473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253 (or 230 counting only the distinct ones).

The product of its digits is 10752, while the sum is 33.

The square root of 2188473 is about 1479.3488432415. The cubic root of 2188473 is about 129.8315965381.

The spelling of 2188473 in words is "two million, one hundred eighty-eight thousand, four hundred seventy-three".