444540364 has 24 divisors (see below), whose sum is σ = 805654080. Its totient is φ = 214478544.

The previous prime is 444540331. The next prime is 444540413. The reversal of 444540364 is 463045444.

It is a super-2 number, since 2×444540364² = 395232270450504992, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1294 + ... + 29845.

It is an arithmetic number, because the mean of its divisors is an integer number (33568920).

Almost surely, 2^444540364 is an apocalyptic number.

It is an amenable number.

444540364 is a deficient number, since it is larger than the sum of its proper divisors (361113716).

444540364 is a wasteful number, since it uses less digits than its factorization.

444540364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31269 (or 31267 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 34.

The square root of 444540364 is about 21084.1258770669. The cubic root of 444540364 is about 763.1977246605.

The spelling of 444540364 in words is "four hundred forty-four million, five hundred forty thousand, three hundred sixty-four".