444102140 has 12 divisors (see below), whose sum is σ = 932614536. Its totient is φ = 177640848.

The previous prime is 444102137. The next prime is 444102161. The reversal of 444102140 is 41201444.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 22205107 = 444102140 / (4 + 4 + 4 + 1 + 0 + 2 + 1 + 4 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11102534 + ... + 11102573.

It is an arithmetic number, because the mean of its divisors is an integer number (77717878).

Almost surely, 2^444102140 is an apocalyptic number.

It is an amenable number.

444102140 is an abundant number, since it is smaller than the sum of its proper divisors (488512396).

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

444102140 is a wasteful number, since it uses less digits than its factorization.

444102140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22205116 (or 22205114 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 444102140 is about 21073.7310412751. The cubic root of 444102140 is about 762.9468576626.

Adding to 444102140 its reverse (41201444), we get a palindrome (485303584).

The spelling of 444102140 in words is "four hundred forty-four million, one hundred two thousand, one hundred forty".