22420264 has 16 divisors (see below), whose sum is σ = 42095520. Its totient is φ = 11194800.

The previous prime is 22420259. The next prime is 22420267. The reversal of 22420264 is 46202422.

It is not an unprimeable number, because it can be changed into a prime (22420267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6439 + ... + 9289.

It is an arithmetic number, because the mean of its divisors is an integer number (2630970).

Almost surely, 2^22420264 is an apocalyptic number.

It is an amenable number.

22420264 is a deficient number, since it is larger than the sum of its proper divisors (19675256).

22420264 is a wasteful number, since it uses less digits than its factorization.

22420264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3840 (or 3836 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 22420264 is about 4735.0041182664. The cubic root of 22420264 is about 281.9769275089.

Adding to 22420264 its reverse (46202422), we get a palindrome (68622686).

The spelling of 22420264 in words is "twenty-two million, four hundred twenty thousand, two hundred sixty-four".