1444490045 has 18 divisors (see below), whose sum is σ = 1814484798. Its totient is φ = 1103853168.

The previous prime is 1444490041. The next prime is 1444490059. The reversal of 1444490045 is 5400944441.

It can be written as a sum of positive squares in only one way, i.e., 1155592036 + 288898009 = 33994^2 + 16997^2 .

It is not a de Polignac number, because 1444490045 - 2² = 1444490041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1444489987 and 1444490014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444490041) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1954286 + ... + 1955024.

It is an arithmetic number, because the mean of its divisors is an integer number (100804711).

Almost surely, 2^1444490045 is an apocalyptic number.

It is an amenable number.

1444490045 is a deficient number, since it is larger than the sum of its proper divisors (369994753).

1444490045 is an frugal number, since it uses more digits than its factorization.

1444490045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1529 (or 767 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 35.

The square root of 1444490045 is about 38006.4474135639. The cubic root of 1444490045 is about 1130.4157096841.

Multiplying 1444490045 by its product of nonzero digits (46080), we get a square (66562101273600 = 8158560²).

The spelling of 1444490045 in words is "one billion, four hundred forty-four million, four hundred ninety thousand, forty-five".