22084385 has 4 divisors (see below), whose sum is σ = 26501268. Its totient is φ = 17667504.

The previous prime is 22084367. The next prime is 22084427. The reversal of 22084385 is 58348022.

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

It can be written as a sum of positive squares in 2 ways, for example, as 16072081 + 6012304 = 4009^2 + 2452^2 .

It is a cyclic number.

It is not a de Polignac number, because 22084385 - 2¹⁶ = 22018849 is a prime.

It is a Duffinian 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, 2208434 + ... + 2208443.

It is an arithmetic number, because the mean of its divisors is an integer number (6625317).

Almost surely, 2^22084385 is an apocalyptic number.

It is an amenable number.

22084385 is a deficient number, since it is larger than the sum of its proper divisors (4416883).

22084385 is an equidigital number, since it uses as much as digits as its factorization.

22084385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4416882.

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

The square root of 22084385 is about 4699.4026216105. The cubic root of 22084385 is about 280.5617336954.

The spelling of 22084385 in words is "twenty-two million, eighty-four thousand, three hundred eighty-five".