244004312040 has 128 divisors (see below), whose sum is σ = 757478476800. Its totient is φ = 62814504960.

The previous prime is 244004312039. The next prime is 244004312051. The reversal of 244004312040 is 40213400442.

It is a happy number.

It is a super-2 number, since 2×244004312040² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 244004312040.

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, 1441294 + ... + 1601666.

It is an arithmetic number, because the mean of its divisors is an integer number (5917800600).

Almost surely, 2^244004312040 is an apocalyptic number.

244004312040 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 244004312040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (378739238400).

244004312040 is an abundant number, since it is smaller than the sum of its proper divisors (513474164760).

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

244004312040 is a wasteful number, since it uses less digits than its factorization.

244004312040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160827 (or 160823 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 244004312040 its reverse (40213400442), we get a palindrome (284217712482).

The spelling of 244004312040 in words is "two hundred forty-four billion, four million, three hundred twelve thousand, forty".