244355140420 has 72 divisors (see below), whose sum is σ = 537392411136. Its totient is φ = 93324065472.

The previous prime is 244355140399. The next prime is 244355140439. The reversal of 244355140420 is 24041553442.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5936029 + ... + 5977051.

It is an arithmetic number, because the mean of its divisors is an integer number (7463783488).

Almost surely, 2^244355140420 is an apocalyptic number.

244355140420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 244355140420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268696205568).

244355140420 is an abundant number, since it is smaller than the sum of its proper divisors (293037270716).

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

244355140420 is a wasteful number, since it uses less digits than its factorization.

244355140420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41641 (or 41616 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 34.

Adding to 244355140420 its reverse (24041553442), we get a palindrome (268396693862).

The spelling of 244355140420 in words is "two hundred forty-four billion, three hundred fifty-five million, one hundred forty thousand, four hundred twenty".