1680226 has 8 divisors (see below), whose sum is σ = 2558160. Its totient is φ = 827508.

The previous prime is 1680191. The next prime is 1680247. The reversal of 1680226 is 6220861.

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

It is a super-2 number, since 2×1680226² = 5646318822152, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1680226.

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, 6136 + ... + 6403.

It is an arithmetic number, because the mean of its divisors is an integer number (319770).

2^1680226 is an apocalyptic number.

1680226 is a deficient number, since it is larger than the sum of its proper divisors (877934).

1680226 is a wasteful number, since it uses less digits than its factorization.

1680226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12608.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 1680226 is about 1296.2353181425. The cubic root of 1680226 is about 118.8837694764.

The spelling of 1680226 in words is "one million, six hundred eighty thousand, two hundred twenty-six".