400000404004 has 24 divisors (see below), whose sum is σ = 707038008768. Its totient is φ = 197990869920.

The previous prime is 400000403983. The next prime is 400000404077. The reversal of 400000404004 is 400404000004.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1054119 + ... + 1382449.

It is an arithmetic number, because the mean of its divisors is an integer number (29459917032).

Almost surely, 2^400000404004 is an apocalyptic number.

It is an amenable number.

400000404004 is a deficient number, since it is larger than the sum of its proper divisors (307037604764).

400000404004 is a wasteful number, since it uses less digits than its factorization.

400000404004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331395 (or 331393 counting only the distinct ones).

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

Adding to 400000404004 its reverse (400404000004), we get a palindrome (800404404008).

The spelling of 400000404004 in words is "four hundred billion, four hundred four thousand, four".