400430204 has 12 divisors (see below), whose sum is σ = 701363544. Its totient is φ = 200040624.

The previous prime is 400430197. The next prime is 400430209. The reversal of 400430204 is 402034004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400430209) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 38387 + ... + 47690.

It is an arithmetic number, because the mean of its divisors is an integer number (58446962).

Almost surely, 2^400430204 is an apocalyptic number.

It is an amenable number.

400430204 is a deficient number, since it is larger than the sum of its proper divisors (300933340).

400430204 is a wasteful number, since it uses less digits than its factorization.

400430204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87244 (or 87242 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 400430204 is about 20010.7522097496. The cubic root of 400430204 is about 737.0703526013.

Adding to 400430204 its reverse (402034004), we get a palindrome (802464208).

The spelling of 400430204 in words is "four hundred million, four hundred thirty thousand, two hundred four".