40404442402 has 32 divisors (see below), whose sum is σ = 65017624320. Its totient is φ = 18763480320.

The previous prime is 40404442373. The next prime is 40404442417. The reversal of 40404442402 is 20424440404.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9874377 + ... + 9878467.

It is an arithmetic number, because the mean of its divisors is an integer number (2031800760).

Almost surely, 2^40404442402 is an apocalyptic number.

40404442402 is a deficient number, since it is larger than the sum of its proper divisors (24613181918).

40404442402 is a wasteful number, since it uses less digits than its factorization.

40404442402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7866.

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 40404442402 its reverse (20424440404), we get a palindrome (60828882806).

The spelling of 40404442402 in words is "forty billion, four hundred four million, four hundred forty-two thousand, four hundred two".