1444020404 has 24 divisors (see below), whose sum is σ = 2593291680. Its totient is φ = 703276704.

The previous prime is 1444020401. The next prime is 1444020421. The reversal of 1444020404 is 4040204441.

It is a self number, because there is not a number n which added to its sum of digits gives 1444020404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444020401) 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, 4967 + ... + 53969.

It is an arithmetic number, because the mean of its divisors is an integer number (108053820).

Almost surely, 2^1444020404 is an apocalyptic number.

It is an amenable number.

1444020404 is a deficient number, since it is larger than the sum of its proper divisors (1149271276).

1444020404 is a wasteful number, since it uses less digits than its factorization.

1444020404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49199 (or 49197 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 1444020404 is about 38000.2684727358. The cubic root of 1444020404 is about 1130.2931872959.

Adding to 1444020404 its reverse (4040204441), we get a palindrome (5484224845).

The spelling of 1444020404 in words is "one billion, four hundred forty-four million, twenty thousand, four hundred four".