1444405656 has 16 divisors (see below), whose sum is σ = 3611014200. Its totient is φ = 481468544.

The previous prime is 1444405643. The next prime is 1444405673. The reversal of 1444405656 is 6565044441.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30091761 + ... + 30091808.

Almost surely, 2^1444405656 is an apocalyptic number.

It is an amenable number.

1444405656 is an abundant number, since it is smaller than the sum of its proper divisors (2166608544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1444405656 is a wasteful number, since it uses less digits than its factorization.

1444405656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60183578 (or 60183574 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 39.

The square root of 1444405656 is about 38005.3372041349. The cubic root of 1444405656 is about 1130.3936958000.

The spelling of 1444405656 in words is "one billion, four hundred forty-four million, four hundred five thousand, six hundred fifty-six".