22389406 has 8 divisors (see below), whose sum is σ = 36167544. Its totient is φ = 10333560.

The previous prime is 22389361. The next prime is 22389407. The reversal of 22389406 is 60498322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22389407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 430540 + ... + 430591.

It is an arithmetic number, because the mean of its divisors is an integer number (4520943).

Almost surely, 2^22389406 is an apocalyptic number.

22389406 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

22389406 is a deficient number, since it is larger than the sum of its proper divisors (13778138).

22389406 is a wasteful number, since it uses less digits than its factorization.

22389406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861146.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 22389406 is about 4731.7444985967. The cubic root of 22389406 is about 281.8475023446.

The spelling of 22389406 in words is "twenty-two million, three hundred eighty-nine thousand, four hundred six".