1444445876 has 6 divisors (see below), whose sum is σ = 2527780290. Its totient is φ = 722222936.

The previous prime is 1444445861. The next prime is 1444445887. The reversal of 1444445876 is 6785444441.

It can be written as a sum of positive squares in only one way, i.e., 971818276 + 472627600 = 31174^2 + 21740^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1444445876.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180555731 + ... + 180555738.

It is an arithmetic number, because the mean of its divisors is an integer number (421296715).

Almost surely, 2^1444445876 is an apocalyptic number.

It is an amenable number.

1444445876 is a deficient number, since it is larger than the sum of its proper divisors (1083334414).

1444445876 is a wasteful number, since it uses less digits than its factorization.

1444445876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361111473 (or 361111471 counting only the distinct ones).

The product of its digits is 1720320, while the sum is 47.

The square root of 1444445876 is about 38005.8663366591. The cubic root of 1444445876 is about 1130.4041877770.

The spelling of 1444445876 in words is "one billion, four hundred forty-four million, four hundred forty-five thousand, eight hundred seventy-six".