40002420404 has 12 divisors (see below), whose sum is σ = 70070222628. Its totient is φ = 19982356800.

The previous prime is 40002420379. The next prime is 40002420407. The reversal of 40002420404 is 40402420004.

It can be written as a sum of positive squares in 2 ways, for example, as 32364010000 + 7638410404 = 179900^2 + 87398^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40002420407) by changing a digit.

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, 4708577 + ... + 4717064.

It is an arithmetic number, because the mean of its divisors is an integer number (5839185219).

Almost surely, 2^40002420404 is an apocalyptic number.

It is an amenable number.

40002420404 is a deficient number, since it is larger than the sum of its proper divisors (30067802224).

40002420404 is a wasteful number, since it uses less digits than its factorization.

40002420404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9426706 (or 9426704 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 40002420404 its reverse (40402420004), we get a palindrome (80404840408).

The spelling of 40002420404 in words is "forty billion, two million, four hundred twenty thousand, four hundred four".