400331231332 has 12 divisors (see below), whose sum is σ = 700585680816. Its totient is φ = 200163893960.

The previous prime is 400331231317. The next prime is 400331231341. The reversal of 400331231332 is 233132133004.

It is a junction number, because it is equal to n+sod(n) for n = 400331231297 and 400331231306.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 193107 + ... + 915397.

It is an arithmetic number, because the mean of its divisors is an integer number (58382140068).

Almost surely, 2^400331231332 is an apocalyptic number.

It is an amenable number.

400331231332 is a deficient number, since it is larger than the sum of its proper divisors (300254449484).

400331231332 is a wasteful number, since it uses less digits than its factorization.

400331231332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860858 (or 860856 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 400331231332 its reverse (233132133004), we get a palindrome (633463364336).

The spelling of 400331231332 in words is "four hundred billion, three hundred thirty-one million, two hundred thirty-one thousand, three hundred thirty-two".