40804660404 has 18 divisors (see below), whose sum is σ = 103145113890. Its totient is φ = 13601553456.

The previous prime is 40804660373. The next prime is 40804660427. The reversal of 40804660404 is 40406640804.

40804660404 is a `hidden beast` number, since 4 + 0 + 8 + 0 + 46 + 604 + 0 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 40299759504 + 504900900 = 200748^2 + 22470^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1133462789 = 40804660404 / (4 + 0 + 8 + 0 + 4 + 6 + 6 + 0 + 4 + 0 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 566731359 + ... + 566731430.

It is an arithmetic number, because the mean of its divisors is an integer number (5730284105).

Almost surely, 2^40804660404 is an apocalyptic number.

It is an amenable number.

40804660404 is an abundant number, since it is smaller than the sum of its proper divisors (62340453486).

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

40804660404 is a wasteful number, since it uses less digits than its factorization.

40804660404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133462799 (or 1133462794 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 36.

The spelling of 40804660404 in words is "forty billion, eight hundred four million, six hundred sixty thousand, four hundred four".