22256641 has 8 divisors (see below), whose sum is σ = 24317568. Its totient is φ = 20202000.

The previous prime is 22256639. The next prime is 22256651. The reversal of 22256641 is 14665222.

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 22256641 - 2¹ = 22256639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22256651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8911 + ... + 11131.

It is an arithmetic number, because the mean of its divisors is an integer number (3039696).

Almost surely, 2^22256641 is an apocalyptic number.

It is an amenable number.

22256641 is a deficient number, since it is larger than the sum of its proper divisors (2060927).

22256641 is a wasteful number, since it uses less digits than its factorization.

22256641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3143.

The product of its digits is 5760, while the sum is 28.

The square root of 22256641 is about 4717.6944581013. The cubic root of 22256641 is about 281.2892965010.

The spelling of 22256641 in words is "twenty-two million, two hundred fifty-six thousand, six hundred forty-one".