444498894 has 96 divisors (see below), whose sum is σ = 1186329600. Its totient is φ = 122880240.

The previous prime is 444498889. The next prime is 444498919. The reversal of 444498894 is 498894444.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 444498894.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 79317 + ... + 84735.

It is an arithmetic number, because the mean of its divisors is an integer number (12357600).

Almost surely, 2^444498894 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 444498894, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (593164800).

444498894 is an abundant number, since it is smaller than the sum of its proper divisors (741830706).

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

444498894 is a wasteful number, since it uses less digits than its factorization.

444498894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5475 (or 5462 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 54.

The square root of 444498894 is about 21083.1424128378. The cubic root of 444498894 is about 763.1739916872.

The spelling of 444498894 in words is "four hundred forty-four million, four hundred ninety-eight thousand, eight hundred ninety-four".