445778716 has 6 divisors (see below), whose sum is σ = 780112760. Its totient is φ = 222889356.

The previous prime is 445778659. The next prime is 445778731. The reversal of 445778716 is 617877544.

It is a self number, because there is not a number n which added to its sum of digits gives 445778716.

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, 55722336 + ... + 55722343.

Almost surely, 2^445778716 is an apocalyptic number.

It is an amenable number.

445778716 is a deficient number, since it is larger than the sum of its proper divisors (334334044).

445778716 is a wasteful number, since it uses less digits than its factorization.

445778716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111444683 (or 111444681 counting only the distinct ones).

The product of its digits is 1317120, while the sum is 49.

The square root of 445778716 is about 21113.4723813967. The cubic root of 445778716 is about 763.9057452503.

The spelling of 445778716 in words is "four hundred forty-five million, seven hundred seventy-eight thousand, seven hundred sixteen".