4040400204 has 60 divisors (see below), whose sum is σ = 10707157384. Its totient is φ = 1328342976.

The previous prime is 4040400191. The next prime is 4040400223. The reversal of 4040400204 is 4020040404.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 19 ways as a sum of consecutive naturals, for example, 61762 + ... + 109065.

Almost surely, 2^4040400204 is an apocalyptic number.

It is an amenable number.

4040400204 is an abundant number, since it is smaller than the sum of its proper divisors (6666757180).

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

4040400204 is a wasteful number, since it uses less digits than its factorization.

4040400204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170916 (or 170905 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 4040400204 is about 63564.1424389569. The cubic root of 4040400204 is about 1592.7274369552.

Adding to 4040400204 its reverse (4020040404), we get a palindrome (8060440608).

The spelling of 4040400204 in words is "four billion, forty million, four hundred thousand, two hundred four".