22085238 has 16 divisors (see below), whose sum is σ = 50480640. Its totient is φ = 6310056.

The previous prime is 22085209. The next prime is 22085257. The reversal of 22085238 is 83258022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262878 + ... + 262961.

It is an arithmetic number, because the mean of its divisors is an integer number (3155040).

Almost surely, 2^22085238 is an apocalyptic number.

22085238 is an abundant number, since it is smaller than the sum of its proper divisors (28395402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22085238 is a wasteful number, since it uses less digits than its factorization.

22085238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525851.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 22085238 is about 4699.4933769503. The cubic root of 22085238 is about 280.5653458416.

It can be divided in two parts, 220 and 85238, that added together give a palindrome (85458).

The spelling of 22085238 in words is "twenty-two million, eighty-five thousand, two hundred thirty-eight".