22406285 has 16 divisors (see below), whose sum is σ = 29462400. Its totient is φ = 16223040.

The previous prime is 22406281. The next prime is 22406291. The reversal of 22406285 is 58260422.

It is not a de Polignac number, because 22406285 - 2² = 22406281 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22406281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13691 + ... + 15239.

It is an arithmetic number, because the mean of its divisors is an integer number (1841400).

Almost surely, 2^22406285 is an apocalyptic number.

It is an amenable number.

22406285 is a deficient number, since it is larger than the sum of its proper divisors (7056115).

22406285 is a wasteful number, since it uses less digits than its factorization.

22406285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1828.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 22406285 is about 4733.5277542231. The cubic root of 22406285 is about 281.9183112651.

The spelling of 22406285 in words is "twenty-two million, four hundred six thousand, two hundred eighty-five".