22038665 has 8 divisors (see below), whose sum is σ = 28850688. Its totient is φ = 16028080.

The previous prime is 22038649. The next prime is 22038671. The reversal of 22038665 is 56683022.

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

It is not a de Polignac number, because 22038665 - 2⁴ = 22038649 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200297 + ... + 200406.

It is an arithmetic number, because the mean of its divisors is an integer number (3606336).

Almost surely, 2^22038665 is an apocalyptic number.

It is an amenable number.

22038665 is a deficient number, since it is larger than the sum of its proper divisors (6812023).

22038665 is a wasteful number, since it uses less digits than its factorization.

22038665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400719.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 22038665 is about 4694.5356532888. The cubic root of 22038665 is about 280.3679897973.

The spelling of 22038665 in words is "twenty-two million, thirty-eight thousand, six hundred sixty-five".