22038687 has 12 divisors (see below), whose sum is σ = 34727784. Its totient is φ = 13356720.

The previous prime is 22038677. The next prime is 22038701. The reversal of 22038687 is 78683022.

It is a happy number.

It is not a de Polignac number, because 22038687 - 2⁴ = 22038671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22038617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111208 + ... + 111405.

It is an arithmetic number, because the mean of its divisors is an integer number (2893982).

Almost surely, 2^22038687 is an apocalyptic number.

22038687 is a deficient number, since it is larger than the sum of its proper divisors (12689097).

22038687 is a wasteful number, since it uses less digits than its factorization.

22038687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222630 (or 222627 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 22038687 is about 4694.5379964380. The cubic root of 22038687 is about 280.3680830893.

The spelling of 22038687 in words is "twenty-two million, thirty-eight thousand, six hundred eighty-seven".