408804004044 has 18 divisors (see below), whose sum is σ = 1033365676980. Its totient is φ = 136268001336.

The previous prime is 408804004043. The next prime is 408804004057. The reversal of 408804004044 is 440400408804.

It is a happy number.

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: 11355666779 = 408804004044 / (4 + 0 + 8 + 8 + 0 + 4 + 0 + 0 + 4 + 0 + 4 + 4).

It is not an unprimeable number, because it can be changed into a prime (408804004043) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5677833354 + ... + 5677833425.

Almost surely, 2^408804004044 is an apocalyptic number.

It is an amenable number.

408804004044 is an abundant number, since it is smaller than the sum of its proper divisors (624561672936).

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

408804004044 is a wasteful number, since it uses less digits than its factorization.

408804004044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11355666789 (or 11355666784 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 36.

The spelling of 408804004044 in words is "four hundred eight billion, eight hundred four million, four thousand, forty-four".