2166339 has 12 divisors (see below), whose sum is σ = 3360264. Its totient is φ = 1237824.

The previous prime is 2166319. The next prime is 2166403. The reversal of 2166339 is 9336612.

It is a happy number.

It is not a de Polignac number, because 2166339 - 2¹¹ = 2164291 is a prime.

2166339 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2166319) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7222 + ... + 7515.

It is an arithmetic number, because the mean of its divisors is an integer number (280022).

2^2166339 is an apocalyptic number.

2166339 is a deficient number, since it is larger than the sum of its proper divisors (1193925).

2166339 is a wasteful number, since it uses less digits than its factorization.

2166339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14754 (or 14747 counting only the distinct ones).

The product of its digits is 5832, while the sum is 30.

The square root of 2166339 is about 1471.8488373471. The cubic root of 2166339 is about 129.3924112486.

It can be divided in two parts, 216 and 6339, that added together give a triangular number (6555 = T₁₁₄).

The spelling of 2166339 in words is "two million, one hundred sixty-six thousand, three hundred thirty-nine".