400541223 has 16 divisors (see below), whose sum is σ = 563676800. Its totient is φ = 252292320.

The previous prime is 400541221. The next prime is 400541263. The reversal of 400541223 is 322145004.

It is not a de Polignac number, because 400541223 - 2¹ = 400541221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 400541223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400541221) 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 15 ways as a sum of consecutive naturals, for example, 12333 + ... + 30873.

It is an arithmetic number, because the mean of its divisors is an integer number (35229800).

Almost surely, 2^400541223 is an apocalyptic number.

400541223 is a deficient number, since it is larger than the sum of its proper divisors (163135577).

400541223 is a wasteful number, since it uses less digits than its factorization.

400541223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18942.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 400541223 is about 20013.5260011823. The cubic root of 400541223 is about 737.1384637241.

Adding to 400541223 its reverse (322145004), we get a palindrome (722686227).

The spelling of 400541223 in words is "four hundred million, five hundred forty-one thousand, two hundred twenty-three".