22210389 has 8 divisors (see below), whose sum is σ = 32904320. Its totient is φ = 14806908.

The previous prime is 22210379. The next prime is 22210421. The reversal of 22210389 is 98301222.

It is a happy number.

It is not a de Polignac number, because 22210389 - 2⁹ = 22209877 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 822607 = 22210389 / (2 + 2 + 2 + 1 + 0 + 3 + 8 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22210369) 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, 411277 + ... + 411330.

It is an arithmetic number, because the mean of its divisors is an integer number (4113040).

Almost surely, 2^22210389 is an apocalyptic number.

It is an amenable number.

22210389 is a deficient number, since it is larger than the sum of its proper divisors (10693931).

22210389 is an equidigital number, since it uses as much as digits as its factorization.

22210389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822616 (or 822610 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 22210389 is about 4712.7899380303. The cubic root of 22210389 is about 281.0943102762.

The spelling of 22210389 in words is "twenty-two million, two hundred ten thousand, three hundred eighty-nine".