22409373 has 32 divisors (see below), whose sum is σ = 36495360. Its totient is φ = 11954880.

The previous prime is 22409353. The next prime is 22409389. The reversal of 22409373 is 37390422.

It is not a de Polignac number, because 22409373 - 2¹⁰ = 22408349 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22409373.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22409323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18286 + ... + 19472.

It is an arithmetic number, because the mean of its divisors is an integer number (1140480).

Almost surely, 2^22409373 is an apocalyptic number.

It is an amenable number.

22409373 is a deficient number, since it is larger than the sum of its proper divisors (14085987).

22409373 is a wasteful number, since it uses less digits than its factorization.

22409373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 22409373 is about 4733.8539267704. The cubic root of 22409373 is about 281.9312618540.

Adding to 22409373 its reverse (37390422), we get a palindrome (59799795).

The spelling of 22409373 in words is "twenty-two million, four hundred nine thousand, three hundred seventy-three".