1004442213 has 4 divisors (see below), whose sum is σ = 1339256288. Its totient is φ = 669628140.

The previous prime is 1004442199. The next prime is 1004442221. The reversal of 1004442213 is 3122444001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3122444001 = 3 ⋅1040814667.

It is not a de Polignac number, because 1004442213 - 2²¹ = 1002345061 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1004442213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004442233) 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, 167407033 + ... + 167407038.

It is an arithmetic number, because the mean of its divisors is an integer number (334814072).

Almost surely, 2^1004442213 is an apocalyptic number.

It is an amenable number.

1004442213 is a deficient number, since it is larger than the sum of its proper divisors (334814075).

1004442213 is an equidigital number, since it uses as much as digits as its factorization.

1004442213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334814074.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1004442213 is about 31692.9363265697. The cubic root of 1004442213 is about 1001.4785504777.

Adding to 1004442213 its reverse (3122444001), we get a palindrome (4126886214).

The spelling of 1004442213 in words is "one billion, four million, four hundred forty-two thousand, two hundred thirteen".