22085318 has 4 divisors (see below), whose sum is σ = 33127980. Its totient is φ = 11042658.

The previous prime is 22085317. The next prime is 22085333. The reversal of 22085318 is 81358022.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×22085318² = 975522542322248, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22085311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5521328 + ... + 5521331.

It is an arithmetic number, because the mean of its divisors is an integer number (8281995).

Almost surely, 2^22085318 is an apocalyptic number.

22085318 is a deficient number, since it is larger than the sum of its proper divisors (11042662).

22085318 is a wasteful number, since it uses less digits than its factorization.

22085318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11042661.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 22085318 is about 4699.5018884984. The cubic root of 22085318 is about 280.5656846078.

The spelling of 22085318 in words is "twenty-two million, eighty-five thousand, three hundred eighteen".