2188039 has 8 divisors (see below), whose sum is σ = 2512928. Its totient is φ = 1866240.

The previous prime is 2188037. The next prime is 2188049. The reversal of 2188039 is 9308812.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2188039 - 2¹ = 2188037 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2188039.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2188031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1039 + ... + 2335.

It is an arithmetic number, because the mean of its divisors is an integer number (314116).

2^2188039 is an apocalyptic number.

2188039 is a deficient number, since it is larger than the sum of its proper divisors (324889).

2188039 is a wasteful number, since it uses less digits than its factorization.

2188039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1545.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 2188039 is about 1479.2021498091. The cubic root of 2188039 is about 129.8230135919.

It can be divided in two parts, 218803 and 9, that added together give a palindrome (218812).

The spelling of 2188039 in words is "two million, one hundred eighty-eight thousand, thirty-nine".