404040004 has 12 divisors (see below), whose sum is σ = 709345728. Its totient is φ = 201369800.

The previous prime is 404039983. The next prime is 404040023. The reversal of 404040004 is 400040404.

It is a self number, because there is not a number n which added to its sum of digits gives 404040004.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161152 + ... + 163639.

It is an arithmetic number, because the mean of its divisors is an integer number (59112144).

Almost surely, 2^404040004 is an apocalyptic number.

It is an amenable number.

404040004 is a deficient number, since it is larger than the sum of its proper divisors (305305724).

404040004 is a wasteful number, since it uses less digits than its factorization.

404040004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325106 (or 325104 counting only the distinct ones).

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

The square root of 404040004 is about 20100.7463543024. The cubic root of 404040004 is about 739.2785786335.

Adding to 404040004 its reverse (400040404), we get a palindrome (804080408).

It can be divided in two parts, 4040 and 40004, that added together give a palindrome (44044).

The spelling of 404040004 in words is "four hundred four million, forty thousand, four".