40400000404 has 24 divisors (see below), whose sum is σ = 75600013608. Its totient is φ = 18823526400.

The previous prime is 40400000309. The next prime is 40400000413.

40400000404 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 27912384900 + 12487615504 = 167070^2 + 111748^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2934309 + ... + 2948044.

It is an arithmetic number, because the mean of its divisors is an integer number (3150000567).

Almost surely, 2^40400000404 is an apocalyptic number.

It is an amenable number.

40400000404 is a deficient number, since it is larger than the sum of its proper divisors (35200013204).

40400000404 is a wasteful number, since it uses less digits than its factorization.

40400000404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5882475 (or 5882473 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

It can be divided in two parts, 40400000 and 404, that added together give a palindrome (40400404).

The spelling of 40400000404 in words is "forty billion, four hundred million, four hundred four", and thus it is an aban number.