1444004407 has 2 divisors, whose sum is σ = 1444004408. Its totient is φ = 1444004406.

The previous prime is 1444004399. The next prime is 1444004437. The reversal of 1444004407 is 7044004441.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (7044004441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1444004407 - 2³ = 1444004399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1444004437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722002203 + 722002204.

It is an arithmetic number, because the mean of its divisors is an integer number (722002204).

Almost surely, 2^1444004407 is an apocalyptic number.

1444004407 is a deficient number, since it is larger than the sum of its proper divisors (1).

1444004407 is an equidigital number, since it uses as much as digits as its factorization.

1444004407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7168, while the sum is 28.

The square root of 1444004407 is about 38000.0579867979. The cubic root of 1444004407 is about 1130.2890134475.

Adding to 1444004407 its reverse (7044004441), we get a palindrome (8488008848).

The spelling of 1444004407 in words is "one billion, four hundred forty-four million, four thousand, four hundred seven".