40447507488 has 48 divisors (see below), whose sum is σ = 106877889216. Its totient is φ = 13393209600.

The previous prime is 40447507459. The next prime is 40447507489. The reversal of 40447507488 is 88470574404.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 40447507488.

It is not an unprimeable number, because it can be changed into a prime (40447507489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1380631 + ... + 1409622.

It is an arithmetic number, because the mean of its divisors is an integer number (2226622692).

Almost surely, 2^40447507488 is an apocalyptic number.

40447507488 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

40447507488 is an abundant number, since it is smaller than the sum of its proper divisors (66430381728).

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

40447507488 is a wasteful number, since it uses less digits than its factorization.

40447507488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2790417 (or 2790409 counting only the distinct ones).

The product of its (nonzero) digits is 4014080, while the sum is 51.

The spelling of 40447507488 in words is "forty billion, four hundred forty-seven million, five hundred seven thousand, four hundred eighty-eight".