400442204 has 24 divisors (see below), whose sum is σ = 715102080. Its totient is φ = 196150896.

The previous prime is 400442197. The next prime is 400442243. The reversal of 400442204 is 402244004.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 69689 + ... + 75215.

It is an arithmetic number, because the mean of its divisors is an integer number (29795920).

Almost surely, 2^400442204 is an apocalyptic number.

It is an amenable number.

400442204 is a deficient number, since it is larger than the sum of its proper divisors (314659876).

400442204 is a wasteful number, since it uses less digits than its factorization.

400442204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5897 (or 5895 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 400442204 is about 20011.0520463068. The cubic root of 400442204 is about 737.0777153126.

Adding to 400442204 its reverse (402244004), we get a palindrome (802686208).

The spelling of 400442204 in words is "four hundred million, four hundred forty-two thousand, two hundred four".