1220466 has 16 divisors (see below), whose sum is σ = 2628864. Its totient is φ = 375504.

The previous prime is 1220437. The next prime is 1220489. The reversal of 1220466 is 6640221.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7746 + ... + 7901.

It is an arithmetic number, because the mean of its divisors is an integer number (164304).

2^1220466 is an apocalyptic number.

1220466 is an abundant number, since it is smaller than the sum of its proper divisors (1408398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1220466 is a wasteful number, since it uses less digits than its factorization.

1220466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15665.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1220466 is about 1104.7470298670. The cubic root of 1220466 is about 106.8665760605.

Adding to 1220466 its reverse (6640221), we get a palindrome (7860687).

The spelling of 1220466 in words is "one million, two hundred twenty thousand, four hundred sixty-six".