22307855 has 12 divisors (see below), whose sum is σ = 27520920. Its totient is φ = 17358624.

The previous prime is 22307837. The next prime is 22307863. The reversal of 22307855 is 55870322.

It is not a de Polignac number, because 22307855 - 2¹⁸ = 22045711 is a prime.

It is a super-3 number, since 3×22307855³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 5216 + ... + 8474.

It is an arithmetic number, because the mean of its divisors is an integer number (2293410).

Almost surely, 2^22307855 is an apocalyptic number.

22307855 is a deficient number, since it is larger than the sum of its proper divisors (5213065).

22307855 is an equidigital number, since it uses as much as digits as its factorization.

22307855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3338 (or 3301 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 22307855 is about 4723.1192023916. The cubic root of 22307855 is about 281.5048863026.

The spelling of 22307855 in words is "twenty-two million, three hundred seven thousand, eight hundred fifty-five".