400355032013 has 16 divisors (see below), whose sum is σ = 407721074880. Its totient is φ = 393032255616.

The previous prime is 400355032009. The next prime is 400355032093. The reversal of 400355032013 is 310230553004.

It is a cyclic number.

It is not a de Polignac number, because 400355032013 - 2² = 400355032009 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400355032093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23923433 + ... + 23940161.

It is an arithmetic number, because the mean of its divisors is an integer number (25482567180).

Almost surely, 2^400355032013 is an apocalyptic number.

It is an amenable number.

400355032013 is a deficient number, since it is larger than the sum of its proper divisors (7366042867).

400355032013 is a wasteful number, since it uses less digits than its factorization.

400355032013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17996.

The product of its (nonzero) digits is 5400, while the sum is 26.

Adding to 400355032013 its reverse (310230553004), we get a palindrome (710585585017).

The spelling of 400355032013 in words is "four hundred billion, three hundred fifty-five million, thirty-two thousand, thirteen".