400105346403 has 16 divisors (see below), whose sum is σ = 610104566016. Its totient is φ = 228474040800.

The previous prime is 400105346393. The next prime is 400105346423. The reversal of 400105346403 is 304643501004.

It is not a de Polignac number, because 400105346403 - 2¹⁰ = 400105345379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (400105346423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6534876 + ... + 6595817.

It is an arithmetic number, because the mean of its divisors is an integer number (38131535376).

Almost surely, 2^400105346403 is an apocalyptic number.

400105346403 is a deficient number, since it is larger than the sum of its proper divisors (209999219613).

400105346403 is a wasteful number, since it uses less digits than its factorization.

400105346403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13132154.

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 400105346403 its reverse (304643501004), we get a palindrome (704748847407).

The spelling of 400105346403 in words is "four hundred billion, one hundred five million, three hundred forty-six thousand, four hundred three".