1660226 has 8 divisors (see below), whose sum is σ = 2496144. Its totient is φ = 828180.

The previous prime is 1660207. The next prime is 1660229. The reversal of 1660226 is 6220661.

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

It is not an unprimeable number, because it can be changed into a prime (1660229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 641 + ... + 1931.

It is an arithmetic number, because the mean of its divisors is an integer number (312018).

2^1660226 is an apocalyptic number.

1660226 is a deficient number, since it is larger than the sum of its proper divisors (835918).

1660226 is a wasteful number, since it uses less digits than its factorization.

1660226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1936.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1660226 is about 1288.4975746970. The cubic root of 1660226 is about 118.4101879016.

Adding to 1660226 its reverse (6220661), we get a palindrome (7880887).

The spelling of 1660226 in words is "one million, six hundred sixty thousand, two hundred twenty-six".