22421364 has 24 divisors (see below), whose sum is σ = 59790528. Its totient is φ = 6406080.

The previous prime is 22421363. The next prime is 22421393. The reversal of 22421364 is 46312422.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22421363) 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, 133377 + ... + 133544.

It is an arithmetic number, because the mean of its divisors is an integer number (2491272).

Almost surely, 2^22421364 is an apocalyptic number.

It is an amenable number.

22421364 is an abundant number, since it is smaller than the sum of its proper divisors (37369164).

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

22421364 is a wasteful number, since it uses less digits than its factorization.

22421364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266935 (or 266933 counting only the distinct ones).

The product of its digits is 2304, while the sum is 24.

The square root of 22421364 is about 4735.1202730237. The cubic root of 22421364 is about 281.9815389555.

Adding to 22421364 its reverse (46312422), we get a palindrome (68733786).

The spelling of 22421364 in words is "twenty-two million, four hundred twenty-one thousand, three hundred sixty-four".