400240400104 has 16 divisors (see below), whose sum is σ = 789948158400. Its totient is φ = 189587557872.

The previous prime is 400240400093. The next prime is 400240400129. The reversal of 400240400104 is 401004042004.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1316580112 + ... + 1316580415.

It is an arithmetic number, because the mean of its divisors is an integer number (49371759900).

Almost surely, 2^400240400104 is an apocalyptic number.

It is an amenable number.

400240400104 is a deficient number, since it is larger than the sum of its proper divisors (389707758296).

400240400104 is a wasteful number, since it uses less digits than its factorization.

400240400104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2633160552 (or 2633160548 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 400240400104 its reverse (401004042004), we get a palindrome (801244442108).

The spelling of 400240400104 in words is "four hundred billion, two hundred forty million, four hundred thousand, one hundred four".