44233378640 has 320 divisors, whose sum is σ = 122460733440. Its totient is φ = 14683576320.

The previous prime is 44233378601. The next prime is 44233378663. The reversal of 44233378640 is 4687333244.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 44233378591 and 44233378600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 78566999 + ... + 78567561.

It is an arithmetic number, because the mean of its divisors is an integer number (382689792).

Almost surely, 2^44233378640 is an apocalyptic number.

44233378640 is a gapful number since it is divisible by the number (40) 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 44233378640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61230366720).

44233378640 is an abundant number, since it is smaller than the sum of its proper divisors (78227354800).

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

44233378640 is a wasteful number, since it uses less digits than its factorization.

44233378640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770 (or 764 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 44.

The spelling of 44233378640 in words is "forty-four billion, two hundred thirty-three million, three hundred seventy-eight thousand, six hundred forty".