4040004 has 12 divisors (see below), whose sum is σ = 9426704. Its totient is φ = 1346664.

The previous prime is 4039991. The next prime is 4040009. The reversal of 4040004 is 4000404.

4040004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 336667 = 4040004 / (4 + 0 + 4 + 0 + 0 + 0 + 4).

It is not an unprimeable number, because it can be changed into a prime (4040009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168322 + ... + 168345.

Almost surely, 2^4040004 is an apocalyptic number.

It is an amenable number.

4040004 is an abundant number, since it is smaller than the sum of its proper divisors (5386700).

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

4040004 is a wasteful number, since it uses less digits than its factorization.

4040004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336674 (or 336672 counting only the distinct ones).

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

The square root of 4040004 is about 2009.9761192611. The cubic root of 4040004 is about 159.2675373993.

Adding to 4040004 its reverse (4000404), we get a palindrome (8040408).

The spelling of 4040004 in words is "four million, forty thousand, four", and thus it is an eban number.