1444004401 has 4 divisors (see below), whose sum is σ = 1650290752. Its totient is φ = 1237718052.

The previous prime is 1444004399. The next prime is 1444004407. The reversal of 1444004401 is 1044004441.

It is a happy number.

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: 1044004441 = 53 ⋅19698197.

It is a cyclic number.

It is not a de Polignac number, because 1444004401 - 2¹ = 1444004399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1444004407) 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, 103143165 + ... + 103143178.

It is an arithmetic number, because the mean of its divisors is an integer number (412572688).

Almost surely, 2^1444004401 is an apocalyptic number.

It is an amenable number.

1444004401 is a deficient number, since it is larger than the sum of its proper divisors (206286351).

1444004401 is an equidigital number, since it uses as much as digits as its factorization.

1444004401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206286350.

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 1444004401 is about 38000.0579078506. The cubic root of 1444004401 is about 1130.2890118820.

Adding to 1444004401 its reverse (1044004441), we get a palindrome (2488008842).

The spelling of 1444004401 in words is "one billion, four hundred forty-four million, four thousand, four hundred one".