22008385 has 8 divisors (see below), whose sum is σ = 30182976. Its totient is φ = 15091440.

The previous prime is 22008383. The next prime is 22008397. The reversal of 22008385 is 58380022.

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

It is not a de Polignac number, because 22008385 - 2¹ = 22008383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22008383) 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, 314371 + ... + 314440.

It is an arithmetic number, because the mean of its divisors is an integer number (3772872).

Almost surely, 2^22008385 is an apocalyptic number.

It is an amenable number.

22008385 is a deficient number, since it is larger than the sum of its proper divisors (8174591).

22008385 is an equidigital number, since it uses as much as digits as its factorization.

22008385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628823.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 22008385 is about 4691.3095186739. The cubic root of 22008385 is about 280.2395271799.

It can be divided in two parts, 2200 and 8385, that added together give a triangular number (10585 = T₁₄₅).

The spelling of 22008385 in words is "twenty-two million, eight thousand, three hundred eighty-five".