444487698 has 48 divisors (see below), whose sum is σ = 998501400. Its totient is φ = 142732800.

The previous prime is 444487679. The next prime is 444487699. The reversal of 444487698 is 896784444.

444487698 is a `hidden beast` number, since 44 + 448 + 76 + 98 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 146821689 + 297666009 = 12117^2 + 17253^2 .

It is not an unprimeable number, because it can be changed into a prime (444487699) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 369498 + ... + 370698.

Almost surely, 2^444487698 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 444487698, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (499250700).

444487698 is an abundant number, since it is smaller than the sum of its proper divisors (554013702).

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

444487698 is a wasteful number, since it uses less digits than its factorization.

444487698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1947 (or 1944 counting only the distinct ones).

The product of its digits is 6193152, while the sum is 54.

The square root of 444487698 is about 21082.8768909748. The cubic root of 444487698 is about 763.1675840464.

The spelling of 444487698 in words is "four hundred forty-four million, four hundred eighty-seven thousand, six hundred ninety-eight".