404000004 has 12 divisors (see below), whose sum is σ = 942666704. Its totient is φ = 134666664.

The previous prime is 403999993. The next prime is 404000033. The reversal of 404000004 is 400000404.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 33666667 = 404000004 / (4 + 0 + 4 + 0 + 0 + 0 + 0 + 0 + 4).

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, 16833322 + ... + 16833345.

Almost surely, 2^404000004 is an apocalyptic number.

It is an amenable number.

404000004 is an abundant number, since it is smaller than the sum of its proper divisors (538666700).

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

404000004 is a wasteful number, since it uses less digits than its factorization.

404000004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33666674 (or 33666672 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 404000004 is about 20099.7513417455. The cubic root of 404000004 is about 739.2541816112.

Adding to 404000004 its reverse (400000404), we get a palindrome (804000408).

The spelling of 404000004 in words is "four hundred four million, four", and thus it is an aban number.