22628686 has 8 divisors (see below), whose sum is σ = 34408224. Its totient is φ = 11159280.

The previous prime is 22628657. The next prime is 22628689. The reversal of 22628686 is 68682622.

22628686 is nontrivially palindromic in base 15.

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 (22628689) 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, 77350 + ... + 77641.

It is an arithmetic number, because the mean of its divisors is an integer number (4301028).

Almost surely, 2^22628686 is an apocalyptic number.

22628686 is a deficient number, since it is larger than the sum of its proper divisors (11779538).

22628686 is a wasteful number, since it uses less digits than its factorization.

22628686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155066.

The product of its digits is 110592, while the sum is 40.

The square root of 22628686 is about 4756.9618455481. The cubic root of 22628686 is about 282.8479998842.

The spelling of 22628686 in words is "twenty-two million, six hundred twenty-eight thousand, six hundred eighty-six".