22189340 has 24 divisors (see below), whose sum is σ = 49050960. Its totient is φ = 8408448.

The previous prime is 22189331. The next prime is 22189367. The reversal of 22189340 is 4398122.

It is a congruent number.

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, 28817 + ... + 29576.

It is an arithmetic number, because the mean of its divisors is an integer number (2043790).

Almost surely, 2^22189340 is an apocalyptic number.

22189340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22189340 is an abundant number, since it is smaller than the sum of its proper divisors (26861620).

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

22189340 is a wasteful number, since it uses less digits than its factorization.

22189340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58421 (or 58419 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 22189340 is about 4710.5562304254. The cubic root of 22189340 is about 281.0054836128.

The spelling of 22189340 in words is "twenty-two million, one hundred eighty-nine thousand, three hundred forty".