400040204 has 6 divisors (see below), whose sum is σ = 700070364. Its totient is φ = 200020100.

The previous prime is 400040191. The next prime is 400040273. The reversal of 400040204 is 402040004.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50005022 + ... + 50005029.

It is an arithmetic number, because the mean of its divisors is an integer number (116678394).

Almost surely, 2^400040204 is an apocalyptic number.

It is an amenable number.

400040204 is a deficient number, since it is larger than the sum of its proper divisors (300030160).

400040204 is a wasteful number, since it uses less digits than its factorization.

400040204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100010055 (or 100010053 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 400040204 is about 20001.0050747456. The cubic root of 400040204 is about 736.8309843681.

Adding to 400040204 its reverse (402040004), we get a palindrome (802080208).

The spelling of 400040204 in words is "four hundred million, forty thousand, two hundred four".