22085438 has 8 divisors (see below), whose sum is σ = 33252120. Its totient is φ = 11001400.

The previous prime is 22085419. The next prime is 22085489. The reversal of 22085438 is 83458022.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19988 + ... + 21063.

It is an arithmetic number, because the mean of its divisors is an integer number (4156515).

Almost surely, 2^22085438 is an apocalyptic number.

22085438 is a deficient number, since it is larger than the sum of its proper divisors (11166682).

22085438 is a wasteful number, since it uses less digits than its factorization.

22085438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41322.

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 22085438 is about 4699.5146557916. The cubic root of 22085438 is about 280.5661927557.

It can be divided in two parts, 220 and 85438, that added together give a palindrome (85658).

The spelling of 22085438 in words is "twenty-two million, eighty-five thousand, four hundred thirty-eight".