22254764 has 24 divisors (see below), whose sum is σ = 44613408. Its totient is φ = 9515520.

The previous prime is 22254761. The next prime is 22254773. The reversal of 22254764 is 46745222.

It is a self number, because there is not a number n which added to its sum of digits gives 22254764.

It is not an unprimeable number, because it can be changed into a prime (22254761) 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, 18254 + ... + 19434.

It is an arithmetic number, because the mean of its divisors is an integer number (1858892).

Almost surely, 2^22254764 is an apocalyptic number.

It is an amenable number.

22254764 is an abundant number, since it is smaller than the sum of its proper divisors (22358644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22254764 is a wasteful number, since it uses less digits than its factorization.

22254764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1865 (or 1863 counting only the distinct ones).

The product of its digits is 26880, while the sum is 32.

The square root of 22254764 is about 4717.4955219905. The cubic root of 22254764 is about 281.2813888259.

Adding to 22254764 its reverse (46745222), we get a palindrome (68999986).

The spelling of 22254764 in words is "twenty-two million, two hundred fifty-four thousand, seven hundred sixty-four".