40404037340 has 12 divisors (see below), whose sum is σ = 84848478456. Its totient is φ = 16161614928.

The previous prime is 40404037337. The next prime is 40404037381. The reversal of 40404037340 is 4373040404.

It is a super-2 number, since 2×40404037340² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1010100914 + ... + 1010100953.

It is an arithmetic number, because the mean of its divisors is an integer number (7070706538).

Almost surely, 2^40404037340 is an apocalyptic number.

It is an amenable number.

40404037340 is an abundant number, since it is smaller than the sum of its proper divisors (44444441116).

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

40404037340 is a wasteful number, since it uses less digits than its factorization.

40404037340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2020201876 (or 2020201874 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 29.

Adding to 40404037340 its reverse (4373040404), we get a palindrome (44777077744).

The spelling of 40404037340 in words is "forty billion, four hundred four million, thirty-seven thousand, three hundred forty".