244673987440 has 80 divisors (see below), whose sum is σ = 583509617280. Its totient is φ = 95368642560.

The previous prime is 244673987407. The next prime is 244673987443. The reversal of 244673987440 is 44789376442.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244673987443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 718960 + ... + 1003120.

It is an arithmetic number, because the mean of its divisors is an integer number (7293870216).

Almost surely, 2^244673987440 is an apocalyptic number.

244673987440 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 244673987440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (291754808640).

244673987440 is an abundant number, since it is smaller than the sum of its proper divisors (338835629840).

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

244673987440 is a wasteful number, since it uses less digits than its factorization.

244673987440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284450 (or 284444 counting only the distinct ones).

The product of its (nonzero) digits is 32514048, while the sum is 58.

The spelling of 244673987440 in words is "two hundred forty-four billion, six hundred seventy-three million, nine hundred eighty-seven thousand, four hundred forty".