40040804 has 24 divisors (see below), whose sum is σ = 71879808. Its totient is φ = 19507680.

The previous prime is 40040789. The next prime is 40040807. The reversal of 40040804 is 40804004.

40040804 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (40040807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69839 + ... + 70409.

It is an arithmetic number, because the mean of its divisors is an integer number (2994992).

Almost surely, 2^40040804 is an apocalyptic number.

It is an amenable number.

40040804 is a deficient number, since it is larger than the sum of its proper divisors (31839004).

40040804 is a wasteful number, since it uses less digits than its factorization.

40040804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995 (or 993 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 40040804 is about 6327.7803375275. The cubic root of 40040804 is about 342.1114395796. Note that the first 3 decimals are identical.

Adding to 40040804 its reverse (40804004), we get a palindrome (80844808).

It can be divided in two parts, 400 and 40804, that multiplied together give a square (16321600 = 4040²).

The spelling of 40040804 in words is "forty million, forty thousand, eight hundred four".