22219884 has 36 divisors (see below), whose sum is σ = 59472504. Its totient is φ = 6970752.

The previous prime is 22219877. The next prime is 22219891. The reversal of 22219884 is 48891222.

It is an interprime number because it is at equal distance from previous prime (22219877) and next prime (22219891).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

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 11 ways as a sum of consecutive naturals, for example, 17542 + ... + 18765.

It is an arithmetic number, because the mean of its divisors is an integer number (1652014).

Almost surely, 2^22219884 is an apocalyptic number.

It is an amenable number.

22219884 is an abundant number, since it is smaller than the sum of its proper divisors (37252620).

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

22219884 is a wasteful number, since it uses less digits than its factorization.

22219884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36334 (or 36329 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 22219884 is about 4713.7971954678. The cubic root of 22219884 is about 281.1343607564.

The spelling of 22219884 in words is "twenty-two million, two hundred nineteen thousand, eight hundred eighty-four".