1807222 has 8 divisors (see below), whose sum is σ = 2804400. Its totient is φ = 872424.

The previous prime is 1807213. The next prime is 1807231. The reversal of 1807222 is 2227081.

It is an interprime number because it is at equal distance from previous prime (1807213) and next prime (1807231).

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

It is a junction number, because it is equal to n+sod(n) for n = 1807193 and 1807202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15522 + ... + 15637.

It is an arithmetic number, because the mean of its divisors is an integer number (350550).

2^1807222 is an apocalyptic number.

1807222 is a deficient number, since it is larger than the sum of its proper divisors (997178).

1807222 is a wasteful number, since it uses less digits than its factorization.

1807222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31190.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 1807222 is about 1344.3295726867. The cubic root of 1807222 is about 121.8065104556.

The spelling of 1807222 in words is "one million, eight hundred seven thousand, two hundred twenty-two".