244513544140 has 24 divisors (see below), whose sum is σ = 513823353120. Its totient is φ = 97739720448.

The previous prime is 244513544137. The next prime is 244513544147. The reversal of 244513544140 is 41445315442.

It is a self number, because there is not a number n which added to its sum of digits gives 244513544140.

It is not an unprimeable number, because it can be changed into a prime (244513544147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4075552 + ... + 4135111.

It is an arithmetic number, because the mean of its divisors is an integer number (21409306380).

Almost surely, 2^244513544140 is an apocalyptic number.

244513544140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

244513544140 is an abundant number, since it is smaller than the sum of its proper divisors (269309808980).

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

244513544140 is a wasteful number, since it uses less digits than its factorization.

244513544140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8212161 (or 8212159 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 37.

Adding to 244513544140 its reverse (41445315442), we get a palindrome (285958859582).

The spelling of 244513544140 in words is "two hundred forty-four billion, five hundred thirteen million, five hundred forty-four thousand, one hundred forty".