400031231204 has 48 divisors (see below), whose sum is σ = 773114630400. Its totient is φ = 179591079840.

The previous prime is 400031231179. The next prime is 400031231207. The reversal of 400031231204 is 402132130004.

It is not an unprimeable number, because it can be changed into a prime (400031231207) 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, 14956187 + ... + 14982909.

It is an arithmetic number, because the mean of its divisors is an integer number (16106554800).

Almost surely, 2^400031231204 is an apocalyptic number.

400031231204 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

400031231204 is a deficient number, since it is larger than the sum of its proper divisors (373083399196).

400031231204 is a wasteful number, since it uses less digits than its factorization.

400031231204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30920 (or 30918 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 400031231204 its reverse (402132130004), we get a palindrome (802163361208).

The spelling of 400031231204 in words is "four hundred billion, thirty-one million, two hundred thirty-one thousand, two hundred four".