244326021940 has 384 divisors, whose sum is σ = 698747212800. Its totient is φ = 69299159040.

The previous prime is 244326021923. The next prime is 244326021941. The reversal of 244326021940 is 49120623442.

It is a super-2 number, since 2×244326021940² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 244326021940.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244326021941) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 628087266 + ... + 628087654.

It is an arithmetic number, because the mean of its divisors is an integer number (1819654200).

Almost surely, 2^244326021940 is an apocalyptic number.

244326021940 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 244326021940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (349373606400).

244326021940 is an abundant number, since it is smaller than the sum of its proper divisors (454421190860).

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

244326021940 is a wasteful number, since it uses less digits than its factorization.

244326021940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795 (or 793 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 37.

The spelling of 244326021940 in words is "two hundred forty-four billion, three hundred twenty-six million, twenty-one thousand, nine hundred forty".