1445447768 has 16 divisors (see below), whose sum is σ = 2713090680. Its totient is φ = 721956928.

The previous prime is 1445447767. The next prime is 1445447777. The reversal of 1445447768 is 8677445441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445447761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87821 + ... + 102972.

Almost surely, 2^1445447768 is an apocalyptic number.

It is an amenable number.

1445447768 is a deficient number, since it is larger than the sum of its proper divisors (1267642912).

1445447768 is a wasteful number, since it uses less digits than its factorization.

1445447768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191746 (or 191742 counting only the distinct ones).

The product of its digits is 3010560, while the sum is 50.

The square root of 1445447768 is about 38019.0448065177. The cubic root of 1445447768 is about 1130.6654831710.

The spelling of 1445447768 in words is "one billion, four hundred forty-five million, four hundred forty-seven thousand, seven hundred sixty-eight".