22340437 has 8 divisors (see below), whose sum is σ = 25561472. Its totient is φ = 19126800.

The previous prime is 22340419. The next prime is 22340441. The reversal of 22340437 is 73404322.

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

It is not a de Polignac number, because 22340437 - 2⁷ = 22340309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22340467) 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 7 ways as a sum of consecutive naturals, for example, 8512 + ... + 10822.

It is an arithmetic number, because the mean of its divisors is an integer number (3195184).

Almost surely, 2^22340437 is an apocalyptic number.

It is an amenable number.

22340437 is a deficient number, since it is larger than the sum of its proper divisors (3221035).

22340437 is a wasteful number, since it uses less digits than its factorization.

22340437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3699.

The product of its (nonzero) digits is 4032, while the sum is 25.

The square root of 22340437 is about 4726.5671475184. The cubic root of 22340437 is about 281.6418713901.

Adding to 22340437 its reverse (73404322), we get a palindrome (95744759).

The spelling of 22340437 in words is "twenty-two million, three hundred forty thousand, four hundred thirty-seven".