444638682 has 12 divisors (see below), whose sum is σ = 963383850. Its totient is φ = 148212888.

The previous prime is 444638671. The next prime is 444638687. The reversal of 444638682 is 286836444.

444638682 is a `hidden beast` number, since 4 + 4 + 4 + 638 + 6 + 8 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 372914721 + 71723961 = 19311^2 + 8469^2 .

It is not an unprimeable number, because it can be changed into a prime (444638687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12351057 + ... + 12351092.

Almost surely, 2^444638682 is an apocalyptic number.

444638682 is an abundant number, since it is smaller than the sum of its proper divisors (518745168).

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

444638682 is a wasteful number, since it uses less digits than its factorization.

444638682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24702157 (or 24702154 counting only the distinct ones).

The product of its digits is 884736, while the sum is 45.

The square root of 444638682 is about 21086.4573126924. The cubic root of 444638682 is about 763.2539854254.

The spelling of 444638682 in words is "four hundred forty-four million, six hundred thirty-eight thousand, six hundred eighty-two".