22240015 has 16 divisors (see below), whose sum is σ = 30685248. Its totient is φ = 15158016.

The previous prime is 22240003. The next prime is 22240021. The reversal of 22240015 is 51004222.

It is a cyclic number.

It is not a de Polignac number, because 22240015 - 2¹¹ = 22237967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4219 + ... + 7891.

It is an arithmetic number, because the mean of its divisors is an integer number (1917828).

Almost surely, 2^22240015 is an apocalyptic number.

22240015 is a deficient number, since it is larger than the sum of its proper divisors (8445233).

22240015 is a wasteful number, since it uses less digits than its factorization.

22240015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3858.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 22240015 is about 4715.9320393746. The cubic root of 22240015 is about 281.2192367998.

Adding to 22240015 its reverse (51004222), we get a palindrome (73244237).

The spelling of 22240015 in words is "twenty-two million, two hundred forty thousand, fifteen".