1670222 has 8 divisors (see below), whose sum is σ = 2518896. Its totient is φ = 830592.

The previous prime is 1670213. The next prime is 1670269. The reversal of 1670222 is 2220761.

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 = 1670194 and 1670203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1778 + ... + 2549.

It is an arithmetic number, because the mean of its divisors is an integer number (314862).

2^1670222 is an apocalyptic number.

1670222 is a deficient number, since it is larger than the sum of its proper divisors (848674).

1670222 is a wasteful number, since it uses less digits than its factorization.

1670222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4522.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 1670222 is about 1292.3706898564. The cubic root of 1670222 is about 118.6473565488.

Adding to 1670222 its reverse (2220761), we get a palindrome (3890983).

The spelling of 1670222 in words is "one million, six hundred seventy thousand, two hundred twenty-two".