22256623 has 8 divisors (see below), whose sum is σ = 22583808. Its totient is φ = 21932064.

The previous prime is 22256603. The next prime is 22256639. The reversal of 22256623 is 32665222.

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

It is a cyclic number.

It is not a de Polignac number, because 22256623 - 2¹³ = 22248431 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22256591 and 22256600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22256603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21465 + ... + 22477.

It is an arithmetic number, because the mean of its divisors is an integer number (2822976).

Almost surely, 2^22256623 is an apocalyptic number.

22256623 is a deficient number, since it is larger than the sum of its proper divisors (327185).

22256623 is a wasteful number, since it uses less digits than its factorization.

22256623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1313.

The product of its digits is 8640, while the sum is 28.

The square root of 22256623 is about 4717.6925503894. The cubic root of 22256623 is about 281.2892206703.

The spelling of 22256623 in words is "twenty-two million, two hundred fifty-six thousand, six hundred twenty-three".