22678285 has 8 divisors (see below), whose sum is σ = 31101696. Its totient is φ = 15550800.

The previous prime is 22678283. The next prime is 22678291. The reversal of 22678285 is 58287622.

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

It is not a de Polignac number, because 22678285 - 2¹ = 22678283 is a prime.

It is a super-2 number, since 2×22678285² = 1028609221082450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22678283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323941 + ... + 324010.

It is an arithmetic number, because the mean of its divisors is an integer number (3887712).

Almost surely, 2^22678285 is an apocalyptic number.

It is an amenable number.

22678285 is a deficient number, since it is larger than the sum of its proper divisors (8423411).

22678285 is an equidigital number, since it uses as much as digits as its factorization.

22678285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647963.

The product of its digits is 107520, while the sum is 40.

The square root of 22678285 is about 4762.1722984369. The cubic root of 22678285 is about 283.0545038550.

The spelling of 22678285 in words is "twenty-two million, six hundred seventy-eight thousand, two hundred eighty-five".