400320401314232 has 16 divisors (see below), whose sum is σ = 857829431387760. Its totient is φ = 171565886277504.

The previous prime is 400320401314213. The next prime is 400320401314237. The reversal of 400320401314232 is 232413104023004.

It is a junction number, because it is equal to n+sod(n) for n = 400320401314195 and 400320401314204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400320401314237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3574289297393 + ... + 3574289297504.

It is an arithmetic number, because the mean of its divisors is an integer number (53614339461735).

Almost surely, 2^{400320401314232} is an apocalyptic number.

It is an amenable number.

400320401314232 is an abundant number, since it is smaller than the sum of its proper divisors (457509030073528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

400320401314232 is a wasteful number, since it uses less digits than its factorization.

400320401314232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7148578594910 (or 7148578594906 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 400320401314232 its reverse (232413104023004), we get a palindrome (632733505337236).

The spelling of 400320401314232 in words is "four hundred trillion, three hundred twenty billion, four hundred one million, three hundred fourteen thousand, two hundred thirty-two".