1004444421 has 8 divisors (see below), whose sum is σ = 1339522464. Its totient is φ = 669498000.

The previous prime is 1004444383. The next prime is 1004444429. The reversal of 1004444421 is 1244444001.

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 1004444421 - 2¹⁰ = 1004443397 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1004444391 and 1004444400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004444429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13455 + ... + 46796.

It is an arithmetic number, because the mean of its divisors is an integer number (167440308).

Almost surely, 2^1004444421 is an apocalyptic number.

It is an amenable number.

1004444421 is a deficient number, since it is larger than the sum of its proper divisors (335078043).

1004444421 is an equidigital number, since it uses as much as digits as its factorization.

1004444421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65811.

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 1004444421 is about 31692.9711608110. The cubic root of 1004444421 is about 1001.4792843056.

Adding to 1004444421 its reverse (1244444001), we get a palindrome (2248888422).

The spelling of 1004444421 in words is "one billion, four million, four hundred forty-four thousand, four hundred twenty-one".