400031041004 has 72 divisors (see below), whose sum is σ = 864796206960. Its totient is φ = 160981115904.

The previous prime is 400031040973. The next prime is 400031041013. The reversal of 400031041004 is 400140130004.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54497 + ... + 896120.

It is an arithmetic number, because the mean of its divisors is an integer number (12011058430).

Almost surely, 2^400031041004 is an apocalyptic number.

It is an amenable number.

400031041004 is an abundant number, since it is smaller than the sum of its proper divisors (464765165956).

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

400031041004 is a wasteful number, since it uses less digits than its factorization.

400031041004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950767 (or 950758 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 400031041004 its reverse (400140130004), we get a palindrome (800171171008).

The spelling of 400031041004 in words is "four hundred billion, thirty-one million, forty-one thousand, four".