445987456 has 32 divisors (see below), whose sum is σ = 935258400. Its totient is φ = 211256064.

The previous prime is 445987427. The next prime is 445987459. The reversal of 445987456 is 654789544.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (445987459) 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, 89260 + ... + 94123.

It is an arithmetic number, because the mean of its divisors is an integer number (29226825).

Almost surely, 2^445987456 is an apocalyptic number.

It is an amenable number.

445987456 is an abundant number, since it is smaller than the sum of its proper divisors (489270944).

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

445987456 is a wasteful number, since it uses less digits than its factorization.

445987456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183416 (or 183404 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 52.

The square root of 445987456 is about 21118.4150920470. The cubic root of 445987456 is about 764.0249619504.

The spelling of 445987456 in words is "four hundred forty-five million, nine hundred eighty-seven thousand, four hundred fifty-six".