1444446004 has 48 divisors (see below), whose sum is σ = 2713244688. Its totient is φ = 670466048.

The previous prime is 1444445993. The next prime is 1444446013. The reversal of 1444446004 is 4006444441.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 212576400 + 1231869604 = 14580^2 + 35098^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2435532 + ... + 2436124.

It is an arithmetic number, because the mean of its divisors is an integer number (56525931).

Almost surely, 2^1444446004 is an apocalyptic number.

It is an amenable number.

1444446004 is a deficient number, since it is larger than the sum of its proper divisors (1268798684).

1444446004 is a wasteful number, since it uses less digits than its factorization.

1444446004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044 (or 1042 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 31.

The square root of 1444446004 is about 38005.8680206097. The cubic root of 1444446004 is about 1130.4042211673.

The spelling of 1444446004 in words is "one billion, four hundred forty-four million, four hundred forty-six thousand, four".