1868222 has 4 divisors (see below), whose sum is σ = 2802336. Its totient is φ = 934110.

The previous prime is 1868201. The next prime is 1868231. The reversal of 1868222 is 2228681.

It is a semiprime because it is the product of two 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 as a sum of consecutive naturals, namely, 467054 + ... + 467057.

It is an arithmetic number, because the mean of its divisors is an integer number (700584).

2^1868222 is an apocalyptic number.

1868222 is a deficient number, since it is larger than the sum of its proper divisors (934114).

1868222 is an equidigital number, since it uses as much as digits as its factorization.

1868222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934113.

The product of its digits is 3072, while the sum is 29.

The square root of 1868222 is about 1366.8291773298. The cubic root of 1868222 is about 123.1618377754.

The spelling of 1868222 in words is "one million, eight hundred sixty-eight thousand, two hundred twenty-two".