1222894 has 8 divisors (see below), whose sum is σ = 1839168. Its totient is φ = 609840.

The previous prime is 1222889. The next prime is 1222909. The reversal of 1222894 is 4982221.

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

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 3 ways as a sum of consecutive naturals, for example, 739 + ... + 1729.

It is an arithmetic number, because the mean of its divisors is an integer number (229896).

2^1222894 is an apocalyptic number.

1222894 is a deficient number, since it is larger than the sum of its proper divisors (616274).

1222894 is an equidigital number, since it uses as much as digits as its factorization.

1222894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1610.

The product of its digits is 2304, while the sum is 28.

The square root of 1222894 is about 1105.8453779801. The cubic root of 1222894 is about 106.9373960510.

It can be divided in two parts, 1222 and 894, that added together give a square (2116 = 46²).

The spelling of 1222894 in words is "one million, two hundred twenty-two thousand, eight hundred ninety-four".