40309019712 has 448 divisors, whose sum is σ = 131088384000. Its totient is φ = 12070840320.

The previous prime is 40309019711. The next prime is 40309019717. The reversal of 40309019712 is 21791090304.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (40309019711) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 202557789 + ... + 202557987.

It is an arithmetic number, because the mean of its divisors is an integer number (292608000).

Almost surely, 2^40309019712 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 40309019712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65544192000).

40309019712 is an abundant number, since it is smaller than the sum of its proper divisors (90779364288).

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

40309019712 is a wasteful number, since it uses less digits than its factorization.

40309019712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431 (or 415 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The spelling of 40309019712 in words is "forty billion, three hundred nine million, nineteen thousand, seven hundred twelve".