84440444 has 24 divisors (see below), whose sum is σ = 162809136. Its totient is φ = 38000000.

The previous prime is 84440413. The next prime is 84440449. The reversal of 84440444 is 44404448.

It is a self number, because there is not a number n which added to its sum of digits gives 84440444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84440449) 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 7 ways as a sum of consecutive naturals, for example, 5057 + ... + 13944.

It is an arithmetic number, because the mean of its divisors is an integer number (6783714).

Almost surely, 2^84440444 is an apocalyptic number.

It is an amenable number.

84440444 is a deficient number, since it is larger than the sum of its proper divisors (78368692).

84440444 is a wasteful number, since it uses less digits than its factorization.

84440444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19117 (or 19115 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 32.

The square root of 84440444 is about 9189.1481650913. The cubic root of 84440444 is about 438.7160295991.

It can be divided in two parts, 844404 and 44, that added together give a palindrome (844448).

The spelling of 84440444 in words is "eighty-four million, four hundred forty thousand, four hundred forty-four".