445945844 has 6 divisors (see below), whose sum is σ = 780405234. Its totient is φ = 222972920.

The previous prime is 445945837. The next prime is 445945849. The reversal of 445945844 is 448549544.

It can be written as a sum of positive squares in only one way, i.e., 346704400 + 99241444 = 18620^2 + 9962^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445945849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55743227 + ... + 55743234.

It is an arithmetic number, because the mean of its divisors is an integer number (130067539).

Almost surely, 2^445945844 is an apocalyptic number.

It is an amenable number.

445945844 is a deficient number, since it is larger than the sum of its proper divisors (334459390).

445945844 is a wasteful number, since it uses less digits than its factorization.

445945844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111486465 (or 111486463 counting only the distinct ones).

The product of its digits is 1843200, while the sum is 47.

The square root of 445945844 is about 21117.4298625567. The cubic root of 445945844 is about 764.0011992525.

The spelling of 445945844 in words is "four hundred forty-five million, nine hundred forty-five thousand, eight hundred forty-four".