444132140 has 48 divisors (see below), whose sum is σ = 1008588672. Its totient is φ = 163639296.

The previous prime is 444132113. The next prime is 444132151. The reversal of 444132140 is 41231444.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2084 + ... + 29876.

It is an arithmetic number, because the mean of its divisors is an integer number (21012264).

Almost surely, 2^444132140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 444132140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (504294336).

444132140 is an abundant number, since it is smaller than the sum of its proper divisors (564456532).

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

444132140 is a wasteful number, since it uses less digits than its factorization.

444132140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27866 (or 27864 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 444132140 is about 21074.4428158848. The cubic root of 444132140 is about 762.9640368115.

Adding to 444132140 its reverse (41231444), we get a palindrome (485363584).

The spelling of 444132140 in words is "four hundred forty-four million, one hundred thirty-two thousand, one hundred forty".