1864222 has 16 divisors (see below), whose sum is σ = 2922480. Its totient is φ = 891072.

The previous prime is 1864217. The next prime is 1864241. The reversal of 1864222 is 2224681.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 4354 + ... + 4762.

It is an arithmetic number, because the mean of its divisors is an integer number (182655).

2^1864222 is an apocalyptic number.

1864222 is a deficient number, since it is larger than the sum of its proper divisors (1058258).

1864222 is a wasteful number, since it uses less digits than its factorization.

1864222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507.

The product of its digits is 1536, while the sum is 25.

The square root of 1864222 is about 1365.3651526240. The cubic root of 1864222 is about 123.0738754654.

The spelling of 1864222 in words is "one million, eight hundred sixty-four thousand, two hundred twenty-two".