1220044 has 12 divisors (see below), whose sum is σ = 2440144. Its totient is φ = 522864.

The previous prime is 1220041. The next prime is 1220071. The reversal of 1220044 is 4400221.

1220044 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1220041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21759 + ... + 21814.

2^1220044 is an apocalyptic number.

1220044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1220044 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1220044 is a wasteful number, since it uses less digits than its factorization.

1220044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43584 (or 43582 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 1220044 is about 1104.5560194033. The cubic root of 1220044 is about 106.8542575707.

Adding to 1220044 its reverse (4400221), we get a palindrome (5620265).

The spelling of 1220044 in words is "one million, two hundred twenty thousand, forty-four".