400513034145 has 128 divisors (see below), whose sum is σ = 769550745600. Its totient is φ = 174197779200.

The previous prime is 400513034143. The next prime is 400513034189. The reversal of 400513034145 is 541430315004.

It is not a de Polignac number, because 400513034145 - 2¹ = 400513034143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (400513034143) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 190810306 + ... + 190812404.

It is an arithmetic number, because the mean of its divisors is an integer number (6012115200).

Almost surely, 2^400513034145 is an apocalyptic number.

It is an amenable number.

400513034145 is a deficient number, since it is larger than the sum of its proper divisors (369037711455).

400513034145 is an equidigital number, since it uses as much as digits as its factorization.

400513034145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2268 (or 2206 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 400513034145 its reverse (541430315004), we get a palindrome (941943349149).

The spelling of 400513034145 in words is "four hundred billion, five hundred thirteen million, thirty-four thousand, one hundred forty-five".