444818868 has 24 divisors (see below), whose sum is σ = 1117750368. Its totient is φ = 136867296.

The previous prime is 444818867. The next prime is 444818939. The reversal of 444818868 is 868818444.

It is a self number, because there is not a number n which added to its sum of digits gives 444818868.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444818867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1425546 + ... + 1425857.

It is an arithmetic number, because the mean of its divisors is an integer number (46572932).

Almost surely, 2^444818868 is an apocalyptic number.

It is an amenable number.

444818868 is an abundant number, since it is smaller than the sum of its proper divisors (672931500).

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

444818868 is a wasteful number, since it uses less digits than its factorization.

444818868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2851423 (or 2851421 counting only the distinct ones).

The product of its digits is 1572864, while the sum is 51.

The square root of 444818868 is about 21090.7294326204. The cubic root of 444818868 is about 763.3570722051.

The spelling of 444818868 in words is "four hundred forty-four million, eight hundred eighteen thousand, eight hundred sixty-eight".