244554140140 has 48 divisors (see below), whose sum is σ = 514307731392. Its totient is φ = 97680059136.

The previous prime is 244554140137. The next prime is 244554140141. The reversal of 244554140140 is 41041455442.

It is a super-2 number, since 2×244554140140² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 244554140096 and 244554140105.

It is not an unprimeable number, because it can be changed into a prime (244554140141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56126842 + ... + 56131198.

It is an arithmetic number, because the mean of its divisors is an integer number (10714744404).

Almost surely, 2^244554140140 is an apocalyptic number.

244554140140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

244554140140 is an abundant number, since it is smaller than the sum of its proper divisors (269753591252).

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

244554140140 is a wasteful number, since it uses less digits than its factorization.

244554140140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7786 (or 7784 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 34.

Adding to 244554140140 its reverse (41041455442), we get a palindrome (285595595582).

The spelling of 244554140140 in words is "two hundred forty-four billion, five hundred fifty-four million, one hundred forty thousand, one hundred forty".