400304103 has 32 divisors (see below), whose sum is σ = 572866560. Its totient is φ = 247908960.

The previous prime is 400304077. The next prime is 400304129. The reversal of 400304103 is 301403004.

It is an interprime number because it is at equal distance from previous prime (400304077) and next prime (400304129).

It is not a de Polignac number, because 400304103 - 2⁹ = 400303591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400304183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 903400 + ... + 903842.

It is an arithmetic number, because the mean of its divisors is an integer number (17902080).

Almost surely, 2^400304103 is an apocalyptic number.

400304103 is a deficient number, since it is larger than the sum of its proper divisors (172562457).

400304103 is a wasteful number, since it uses less digits than its factorization.

400304103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 400304103 is about 20007.6011305704. The cubic root of 400304103 is about 736.9929732679.

Adding to 400304103 its reverse (301403004), we get a palindrome (701707107).

The spelling of 400304103 in words is "four hundred million, three hundred four thousand, one hundred three".