40450305072 has 20 divisors (see below), whose sum is σ = 104496621560. Its totient is φ = 13483435008.

The previous prime is 40450305047. The next prime is 40450305073. The reversal of 40450305072 is 27050305404.

It is not an unprimeable number, because it can be changed into a prime (40450305073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 421357297 + ... + 421357392.

It is an arithmetic number, because the mean of its divisors is an integer number (5224831078).

Almost surely, 2^40450305072 is an apocalyptic number.

It is an amenable number.

40450305072 is an abundant number, since it is smaller than the sum of its proper divisors (64046316488).

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

40450305072 is a wasteful number, since it uses less digits than its factorization.

40450305072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842714700 (or 842714694 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 30.

The spelling of 40450305072 in words is "forty billion, four hundred fifty million, three hundred five thousand, seventy-two".