400211233 has 8 divisors (see below), whose sum is σ = 405384840. Its totient is φ = 395059200.

The previous prime is 400211221. The next prime is 400211237. The reversal of 400211233 is 332112004.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 258791569 + 141419664 = 16087^2 + 11892^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 400211233 - 2⁹ = 400210721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400211237) 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 7 ways as a sum of consecutive naturals, for example, 33753 + ... + 44041.

It is an arithmetic number, because the mean of its divisors is an integer number (50673105).

Almost surely, 2^400211233 is an apocalyptic number.

It is an amenable number.

400211233 is a deficient number, since it is larger than the sum of its proper divisors (5173607).

400211233 is a wasteful number, since it uses less digits than its factorization.

400211233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10787.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 400211233 is about 20005.2801280062. The cubic root of 400211233 is about 736.9359750753.

Adding to 400211233 its reverse (332112004), we get a palindrome (732323237).

The spelling of 400211233 in words is "four hundred million, two hundred eleven thousand, two hundred thirty-three".