445009964 has 18 divisors (see below), whose sum is σ = 905913540. Its totient is φ = 190718472.

The previous prime is 445009949. The next prime is 445009987. The reversal of 445009964 is 469900544.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1135034 + ... + 1135425.

It is an arithmetic number, because the mean of its divisors is an integer number (50328530).

Almost surely, 2^445009964 is an apocalyptic number.

It is an amenable number.

445009964 is an abundant number, since it is smaller than the sum of its proper divisors (460903576).

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

445009964 is a wasteful number, since it uses less digits than its factorization.

445009964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2270477 (or 2270468 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 445009964 is about 21095.2592778567. The cubic root of 445009964 is about 763.4663703255.

The spelling of 445009964 in words is "four hundred forty-five million, nine thousand, nine hundred sixty-four".