1004220445 has 8 divisors (see below), whose sum is σ = 1206897120. Its totient is φ = 802154640.

The previous prime is 1004220443. The next prime is 1004220461. The reversal of 1004220445 is 5440224001.

It is a happy number.

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

It is not a de Polignac number, because 1004220445 - 2¹ = 1004220443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004220443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149091 + ... + 155680.

It is an arithmetic number, because the mean of its divisors is an integer number (150862140).

Almost surely, 2^1004220445 is an apocalyptic number.

It is an amenable number.

1004220445 is a deficient number, since it is larger than the sum of its proper divisors (202676675).

1004220445 is an equidigital number, since it uses as much as digits as its factorization.

1004220445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305435.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 1004220445 is about 31689.4374358397. The cubic root of 1004220445 is about 1001.4048404990.

Adding to 1004220445 its reverse (5440224001), we get a palindrome (6444444446).

The spelling of 1004220445 in words is "one billion, four million, two hundred twenty thousand, four hundred forty-five".