40308706784 has 72 divisors (see below), whose sum is σ = 82653951744. Its totient is φ = 19348761600.

The previous prime is 40308706771. The next prime is 40308706793. The reversal of 40308706784 is 48760780304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3900344 + ... + 3910664.

It is an arithmetic number, because the mean of its divisors is an integer number (1147971552).

Almost surely, 2^40308706784 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40308706784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41326975872).

40308706784 is an abundant number, since it is smaller than the sum of its proper divisors (42345244960).

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

40308706784 is a wasteful number, since it uses less digits than its factorization.

40308706784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10520 (or 10481 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 47.

The spelling of 40308706784 in words is "forty billion, three hundred eight million, seven hundred six thousand, seven hundred eighty-four".