444636306 has 12 divisors (see below), whose sum is σ = 963378702. Its totient is φ = 148212096.

The previous prime is 444636301. The next prime is 444636337. The reversal of 444636306 is 603636444.

It can be written as a sum of positive squares in only one way, i.e., 363474225 + 81162081 = 19065^2 + 9009^2 .

It is a super-2 number, since 2×444636306² = 395402889226651272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (444636301) by changing a digit.

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, 12350991 + ... + 12351026.

Almost surely, 2^444636306 is an apocalyptic number.

444636306 is an abundant number, since it is smaller than the sum of its proper divisors (518742396).

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

444636306 is a wasteful number, since it uses less digits than its factorization.

444636306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24702025 (or 24702022 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 36.

The square root of 444636306 is about 21086.4009731391. The cubic root of 444636306 is about 763.2526258986.

The spelling of 444636306 in words is "four hundred forty-four million, six hundred thirty-six thousand, three hundred six".