444340140 has 48 divisors (see below), whose sum is σ = 1246710528. Its totient is φ = 118247104.

The previous prime is 444340133. The next prime is 444340153. The reversal of 444340140 is 41043444.

It is a self number, because there is not a number n which added to its sum of digits gives 444340140.

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, 22819 + ... + 37541.

It is an arithmetic number, because the mean of its divisors is an integer number (25973136).

Almost surely, 2^444340140 is an apocalyptic number.

It is an amenable number.

444340140 is an abundant number, since it is smaller than the sum of its proper divisors (802370388).

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

444340140 is a wasteful number, since it uses less digits than its factorization.

444340140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15238 (or 15236 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 444340140 is about 21079.3771255225. The cubic root of 444340140 is about 763.0831243065.

Adding to 444340140 its reverse (41043444), we get a palindrome (485383584).

The spelling of 444340140 in words is "four hundred forty-four million, three hundred forty thousand, one hundred forty".