544440140 has 24 divisors (see below), whose sum is σ = 1144656240. Its totient is φ = 217522368.

The previous prime is 544440137. The next prime is 544440161. The reversal of 544440140 is 41044445.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2246 + ... + 33074.

It is an arithmetic number, because the mean of its divisors is an integer number (47694010).

Almost surely, 2^544440140 is an apocalyptic number.

It is an amenable number.

544440140 is an abundant number, since it is smaller than the sum of its proper divisors (600216100).

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

544440140 is a wasteful number, since it uses less digits than its factorization.

544440140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31721 (or 31719 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 544440140 is about 23333.2410950558. The cubic root of 544440140 is about 816.5511203087.

Adding to 544440140 its reverse (41044445), we get a palindrome (585484585).

The spelling of 544440140 in words is "five hundred forty-four million, four hundred forty thousand, one hundred forty".