244223202440 has 128 divisors (see below), whose sum is σ = 661268102400. Its totient is φ = 79301099520.

The previous prime is 244223202407. The next prime is 244223202469. The reversal of 244223202440 is 44202322442.

It is a super-2 number, since 2×244223202440² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23620952 + ... + 23631288.

It is an arithmetic number, because the mean of its divisors is an integer number (5166157050).

Almost surely, 2^244223202440 is an apocalyptic number.

244223202440 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 244223202440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (330634051200).

244223202440 is an abundant number, since it is smaller than the sum of its proper divisors (417044899960).

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

244223202440 is a wasteful number, since it uses less digits than its factorization.

244223202440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14815 (or 14811 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 29.

Adding to 244223202440 its reverse (44202322442), we get a palindrome (288425524882).

The spelling of 244223202440 in words is "two hundred forty-four billion, two hundred twenty-three million, two hundred two thousand, four hundred forty".