22438437 has 8 divisors (see below), whose sum is σ = 34191936. Its totient is φ = 12821952.

The previous prime is 22438433. The next prime is 22438441. The reversal of 22438437 is 73483422.

It is an interprime number because it is at equal distance from previous prime (22438433) and next prime (22438441).

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

It is not a de Polignac number, because 22438437 - 2² = 22438433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22438398 and 22438407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22438433) by changing a digit.

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, 534228 + ... + 534269.

It is an arithmetic number, because the mean of its divisors is an integer number (4273992).

Almost surely, 2^22438437 is an apocalyptic number.

It is an amenable number.

22438437 is a deficient number, since it is larger than the sum of its proper divisors (11753499).

22438437 is a wasteful number, since it uses less digits than its factorization.

22438437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1068507.

The product of its digits is 32256, while the sum is 33.

The square root of 22438437 is about 4736.9227352787. The cubic root of 22438437 is about 282.0530934688.

The spelling of 22438437 in words is "twenty-two million, four hundred thirty-eight thousand, four hundred thirty-seven".