22064638 has 8 divisors (see below), whose sum is σ = 33149160. Its totient is φ = 11014920.

The previous prime is 22064597. The next prime is 22064639. The reversal of 22064638 is 83646022.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22064639) 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, 7053 + ... + 9688.

It is an arithmetic number, because the mean of its divisors is an integer number (4143645).

Almost surely, 2^22064638 is an apocalyptic number.

22064638 is a deficient number, since it is larger than the sum of its proper divisors (11084522).

22064638 is a wasteful number, since it uses less digits than its factorization.

22064638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17402.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 22064638 is about 4697.3011400165. The cubic root of 22064638 is about 280.4780862877.

The spelling of 22064638 in words is "twenty-two million, sixty-four thousand, six hundred thirty-eight".