1444444444 has 6 divisors (see below), whose sum is σ = 2527777784. Its totient is φ = 722222220.

The previous prime is 1444444439. The next prime is 1444444447. The reversal of 1444444444 is 4444444441.

It is a nude number because it is divisible by every one of its digits.

1444444444 is a modest number, since divided by 44444 gives 14444 as remainder.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444444447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180555552 + ... + 180555559.

Almost surely, 2^1444444444 is an apocalyptic number.

It is an amenable number.

1444444444 is a deficient number, since it is larger than the sum of its proper divisors (1083333340).

1444444444 is a wasteful number, since it uses less digits than its factorization.

1444444444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361111115 (or 361111113 counting only the distinct ones).

The product of its digits is 262144, while the sum is 37.

The square root of 1444444444 is about 38005.8474974575. The cubic root of 1444444444 is about 1130.4038142221.

Adding to 1444444444 its reverse (4444444441), we get a palindrome (5888888885).

It can be divided in two parts, 14444444 and 44, that multiplied together give a palindrome (635555536).

The spelling of 1444444444 in words is "one billion, four hundred forty-four million, four hundred forty-four thousand, four hundred forty-four".