244020040000 has 840 divisors, whose sum is σ = 745426012320. Its totient is φ = 78336000000.

The previous prime is 244020039971. The next prime is 244020040003. The reversal of 244020040000 is 40020442.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244020040003) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 2416039950 + ... + 2416040050.

Almost surely, 2^244020040000 is an apocalyptic number.

244020040000 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 244020040000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (372713006160).

244020040000 is an abundant number, since it is smaller than the sum of its proper divisors (501405972320).

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

244020040000 is a wasteful number, since it uses less digits than its factorization.

244020040000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197 (or 155 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 244020040000 its reverse (40020442), we get a palindrome (244060060442).

The spelling of 244020040000 in words is "two hundred forty-four billion, twenty million, forty thousand".