22276661 has 8 divisors (see below), whose sum is σ = 24543648. Its totient is φ = 20050000.

The previous prime is 22276649. The next prime is 22276663. The reversal of 22276661 is 16667222.

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 22276661 - 2¹⁰ = 22275637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22276663) 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, 8915 + ... + 11136.

It is an arithmetic number, because the mean of its divisors is an integer number (3067956).

Almost surely, 2^22276661 is an apocalyptic number.

It is an amenable number.

22276661 is a deficient number, since it is larger than the sum of its proper divisors (2266987).

22276661 is a wasteful number, since it uses less digits than its factorization.

22276661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20163.

The product of its digits is 12096, while the sum is 32.

The square root of 22276661 is about 4719.8157803033. The cubic root of 22276661 is about 281.3736117706.

It can be divided in two parts, 2227 and 6661, that added together give a palindrome (8888).

The spelling of 22276661 in words is "twenty-two million, two hundred seventy-six thousand, six hundred sixty-one".