400441232330 has 16 divisors (see below), whose sum is σ = 720807992424. Its totient is φ = 160173432000.

The previous prime is 400441232299. The next prime is 400441232339. The reversal of 400441232330 is 33232144004.

It can be written as a sum of positive squares in 4 ways, for example, as 170166975169 + 230274257161 = 412513^2 + 479869^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 400441232330.

It is not an unprimeable number, because it can be changed into a prime (400441232339) 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 7 ways as a sum of consecutive naturals, for example, 210644 + ... + 919376.

Almost surely, 2^400441232330 is an apocalyptic number.

400441232330 is a deficient number, since it is larger than the sum of its proper divisors (320366760094).

400441232330 is a wasteful number, since it uses less digits than its factorization.

400441232330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765241.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 400441232330 its reverse (33232144004), we get a palindrome (433673376334).

The spelling of 400441232330 in words is "four hundred billion, four hundred forty-one million, two hundred thirty-two thousand, three hundred thirty".