40402727424 has 240 divisors, whose sum is σ = 121923529728. Its totient is φ = 13356306432.

The previous prime is 40402727423. The next prime is 40402727447. The reversal of 40402727424 is 42472720404.

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 (40402727423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15799554 + ... + 15802110.

Almost surely, 2^40402727424 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 40402727424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60961764864).

40402727424 is an abundant number, since it is smaller than the sum of its proper divisors (81520802304).

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

40402727424 is an equidigital number, since it uses as much as digits as its factorization.

40402727424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2717 (or 2689 counting only the distinct ones).

The product of its (nonzero) digits is 100352, while the sum is 36.

The spelling of 40402727424 in words is "forty billion, four hundred two million, seven hundred twenty-seven thousand, four hundred twenty-four".