40530768344 has 64 divisors (see below), whose sum is σ = 84889728000. Its totient is φ = 17982357120.

The previous prime is 40530768319. The next prime is 40530768353. The reversal of 40530768344 is 44386703504.

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 = 40530768295 and 40530768304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7675097 + ... + 7680375.

It is an arithmetic number, because the mean of its divisors is an integer number (1326402000).

Almost surely, 2^40530768344 is an apocalyptic number.

40530768344 is a gapful number since it is divisible by the number (44) 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 40530768344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42444864000).

40530768344 is an abundant number, since it is smaller than the sum of its proper divisors (44358959656).

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

40530768344 is a wasteful number, since it uses less digits than its factorization.

40530768344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7368 (or 7364 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 44.

The spelling of 40530768344 in words is "forty billion, five hundred thirty million, seven hundred sixty-eight thousand, three hundred forty-four".