445378756 has 12 divisors (see below), whose sum is σ = 779563792. Its totient is φ = 222646248.

The previous prime is 445378741. The next prime is 445378757. The reversal of 445378756 is 657873544.

It is a super-2 number, since 2×445378756² = 396724472592215072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (445378757) 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, 27751 + ... + 40753.

Almost surely, 2^445378756 is an apocalyptic number.

It is an amenable number.

445378756 is a deficient number, since it is larger than the sum of its proper divisors (334185036).

445378756 is a wasteful number, since it uses less digits than its factorization.

445378756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21570 (or 21568 counting only the distinct ones).

The product of its digits is 2822400, while the sum is 49.

The square root of 445378756 is about 21103.9985784685. The cubic root of 445378756 is about 763.6772139540.

The spelling of 445378756 in words is "four hundred forty-five million, three hundred seventy-eight thousand, seven hundred fifty-six".