22256385 has 8 divisors (see below), whose sum is σ = 35610240. Its totient is φ = 11870064.

The previous prime is 22256371. The next prime is 22256401. The reversal of 22256385 is 58365222.

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

It is not a de Polignac number, because 22256385 - 2¹⁰ = 22255361 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 741865 + ... + 741894.

It is an arithmetic number, because the mean of its divisors is an integer number (4451280).

Almost surely, 2^22256385 is an apocalyptic number.

It is an amenable number.

22256385 is a deficient number, since it is larger than the sum of its proper divisors (13353855).

22256385 is a wasteful number, since it uses less digits than its factorization.

22256385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1483767.

The product of its digits is 28800, while the sum is 33.

The square root of 22256385 is about 4717.6673261263. The cubic root of 22256385 is about 281.2882180163.

The spelling of 22256385 in words is "twenty-two million, two hundred fifty-six thousand, three hundred eighty-five".