2216039 has 4 divisors (see below), whose sum is σ = 2532624. Its totient is φ = 1899456.

The previous prime is 2216021. The next prime is 2216047. The reversal of 2216039 is 9306122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2216039 - 2⁸ = 2215783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2216839) 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, 158282 + ... + 158295.

It is an arithmetic number, because the mean of its divisors is an integer number (633156).

2^2216039 is an apocalyptic number.

2216039 is a deficient number, since it is larger than the sum of its proper divisors (316585).

2216039 is an equidigital number, since it uses as much as digits as its factorization.

2216039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316584.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 2216039 is about 1488.6366245663. The cubic root of 2216039 is about 130.3744431265.

It can be divided in two parts, 22 and 16039, that added together give a palindrome (16061).

The spelling of 2216039 in words is "two million, two hundred sixteen thousand, thirty-nine".