244121540540 has 48 divisors (see below), whose sum is σ = 549351385632. Its totient is φ = 90797285376.

The previous prime is 244121540539. The next prime is 244121540627. The reversal of 244121540540 is 45045121442.

It is a junction number, because it is equal to n+sod(n) for n = 244121540497 and 244121540506.

It is a congruent number.

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, 4297109 + ... + 4353548.

It is an arithmetic number, because the mean of its divisors is an integer number (11444820534).

Almost surely, 2^244121540540 is an apocalyptic number.

244121540540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

244121540540 is an abundant number, since it is smaller than the sum of its proper divisors (305229845092).

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

244121540540 is a wasteful number, since it uses less digits than its factorization.

244121540540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8650766 (or 8650764 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 32.

Adding to 244121540540 its reverse (45045121442), we get a palindrome (289166661982).

The spelling of 244121540540 in words is "two hundred forty-four billion, one hundred twenty-one million, five hundred forty thousand, five hundred forty".