22688001 has 24 divisors (see below), whose sum is σ = 38664704. Its totient is φ = 12545280.

The previous prime is 22687999. The next prime is 22688011. The reversal of 22688001 is 10088622.

It is not a de Polignac number, because 22688001 - 2¹ = 22687999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22688011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3856 + ... + 7761.

Almost surely, 2^22688001 is an apocalyptic number.

22688001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22688001 is a deficient number, since it is larger than the sum of its proper divisors (15976703).

22688001 is a wasteful number, since it uses less digits than its factorization.

22688001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11661 (or 11658 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 22688001 is about 4763.1923118850. The cubic root of 22688001 is about 283.0949208575.

The spelling of 22688001 in words is "twenty-two million, six hundred eighty-eight thousand, one".