1444444156 has 24 divisors (see below), whose sum is σ = 2584297296. Its totient is φ = 706231680.

The previous prime is 1444444081. The next prime is 1444444159. The reversal of 1444444156 is 6514444441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444444159) 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, 17046 + ... + 56386.

It is an arithmetic number, because the mean of its divisors is an integer number (107679054).

Almost surely, 2^1444444156 is an apocalyptic number.

It is an amenable number.

1444444156 is a deficient number, since it is larger than the sum of its proper divisors (1139853140).

1444444156 is a wasteful number, since it uses less digits than its factorization.

1444444156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39549 (or 39547 counting only the distinct ones).

The product of its digits is 122880, while the sum is 37.

The square root of 1444444156 is about 38005.8437085667. The cubic root of 1444444156 is about 1130.4037390937.

Adding to 1444444156 its reverse (6514444441), we get a palindrome (7958888597).

The spelling of 1444444156 in words is "one billion, four hundred forty-four million, four hundred forty-four thousand, one hundred fifty-six".