1667222 has 16 divisors (see below), whose sum is σ = 2592000. Its totient is φ = 803880.

The previous prime is 1667213. The next prime is 1667227. The reversal of 1667222 is 2227661.

It is a junction number, because it is equal to n+sod(n) for n = 1667191 and 1667200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1667227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8279 + ... + 8477.

It is an arithmetic number, because the mean of its divisors is an integer number (162000).

2^1667222 is an apocalyptic number.

1667222 is a deficient number, since it is larger than the sum of its proper divisors (924778).

1667222 is a wasteful number, since it uses less digits than its factorization.

1667222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331.

The product of its digits is 2016, while the sum is 26.

The square root of 1667222 is about 1291.2095104978. The cubic root of 1667222 is about 118.5762770968.

The spelling of 1667222 in words is "one million, six hundred sixty-seven thousand, two hundred twenty-two".