22784641 has 8 divisors (see below), whose sum is σ = 26318304. Its totient is φ = 19494720.

The previous prime is 22784639. The next prime is 22784683. The reversal of 22784641 is 14648722.

It is a happy number.

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 22784641 - 2¹ = 22784639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22784597 and 22784606.

It is not an unprimeable number, because it can be changed into a prime (22784141) 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, 60735 + ... + 61108.

It is an arithmetic number, because the mean of its divisors is an integer number (3289788).

Almost surely, 2^22784641 is an apocalyptic number.

It is an amenable number.

22784641 is a deficient number, since it is larger than the sum of its proper divisors (3533663).

22784641 is a wasteful number, since it uses less digits than its factorization.

22784641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121871.

The product of its digits is 21504, while the sum is 34.

The square root of 22784641 is about 4773.3259892867. The cubic root of 22784641 is about 283.4963010175.

The spelling of 22784641 in words is "twenty-two million, seven hundred eighty-four thousand, six hundred forty-one".