22220364 has 24 divisors (see below), whose sum is σ = 51928128. Its totient is φ = 7395280.

The previous prime is 22220357. The next prime is 22220371. The reversal of 22220364 is 46302222.

It is an interprime number because it is at equal distance from previous prime (22220357) and next prime (22220371).

It is a self number, because there is not a number n which added to its sum of digits gives 22220364.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 10699 + ... + 12605.

It is an arithmetic number, because the mean of its divisors is an integer number (2163672).

Almost surely, 2^22220364 is an apocalyptic number.

It is an amenable number.

22220364 is an abundant number, since it is smaller than the sum of its proper divisors (29707764).

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

22220364 is a wasteful number, since it uses less digits than its factorization.

22220364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2885 (or 2883 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 22220364 is about 4713.8481095597. The cubic root of 22220364 is about 281.1363851222.

Adding to 22220364 its reverse (46302222), we get a palindrome (68522586).

The spelling of 22220364 in words is "twenty-two million, two hundred twenty thousand, three hundred sixty-four".