244121554340 has 24 divisors (see below), whose sum is σ = 539637120960. Its totient is φ = 92509220448.

The previous prime is 244121554333. The next prime is 244121554379. The reversal of 244121554340 is 43455121442.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 244121554340.

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, 321212192 + ... + 321212951.

It is an arithmetic number, because the mean of its divisors is an integer number (22484880040).

Almost surely, 2^244121554340 is an apocalyptic number.

244121554340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

244121554340 is an abundant number, since it is smaller than the sum of its proper divisors (295515566620).

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

244121554340 is a wasteful number, since it uses less digits than its factorization.

244121554340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642425171 (or 642425169 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 35.

Adding to 244121554340 its reverse (43455121442), we get a palindrome (287576675782).

The spelling of 244121554340 in words is "two hundred forty-four billion, one hundred twenty-one million, five hundred fifty-four thousand, three hundred forty".