22438735 has 8 divisors (see below), whose sum is σ = 29374416. Its totient is φ = 16319040.

The previous prime is 22438729. The next prime is 22438739. The reversal of 22438735 is 53783422.

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

It is not a de Polignac number, because 22438735 - 2³ = 22438727 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22438735.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22438739) 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, 203934 + ... + 204043.

It is an arithmetic number, because the mean of its divisors is an integer number (3671802).

Almost surely, 2^22438735 is an apocalyptic number.

22438735 is a deficient number, since it is larger than the sum of its proper divisors (6935681).

22438735 is a wasteful number, since it uses less digits than its factorization.

22438735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407993.

The product of its digits is 40320, while the sum is 34.

The square root of 22438735 is about 4736.9541901944. The cubic root of 22438735 is about 282.0543420919.

It can be divided in two parts, 224387 and 35, that added together give a palindrome (224422).

The spelling of 22438735 in words is "twenty-two million, four hundred thirty-eight thousand, seven hundred thirty-five".