400313223 has 24 divisors (see below), whose sum is σ = 611098800. Its totient is φ = 251817984.

The previous prime is 400313203. The next prime is 400313237. The reversal of 400313223 is 322313004.

It is not a de Polignac number, because 400313223 - 2⁵ = 400313191 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 400313196 and 400313205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400313203) 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 23 ways as a sum of consecutive naturals, for example, 39393 + ... + 48501.

It is an arithmetic number, because the mean of its divisors is an integer number (25462450).

Almost surely, 2^400313223 is an apocalyptic number.

400313223 is a deficient number, since it is larger than the sum of its proper divisors (210785577).

400313223 is a wasteful number, since it uses less digits than its factorization.

400313223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9391 (or 9388 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 400313223 is about 20007.8290426523. The cubic root of 400313223 is about 736.9985701169.

Adding to 400313223 its reverse (322313004), we get a palindrome (722626227).

The spelling of 400313223 in words is "four hundred million, three hundred thirteen thousand, two hundred twenty-three".