400107111 has 16 divisors (see below), whose sum is σ = 579671040. Its totient is φ = 244546560.

The previous prime is 400107107. The next prime is 400107161. The reversal of 400107111 is 111701004.

It is not a de Polignac number, because 400107111 - 2² = 400107107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400107101) 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, 111450 + ... + 114983.

It is an arithmetic number, because the mean of its divisors is an integer number (36229440).

Almost surely, 2^400107111 is an apocalyptic number.

400107111 is a deficient number, since it is larger than the sum of its proper divisors (179563929).

400107111 is a wasteful number, since it uses less digits than its factorization.

400107111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226486.

The product of its (nonzero) digits is 28, while the sum is 15.

The square root of 400107111 is about 20002.6775957620. The cubic root of 400107111 is about 736.8720605750.

Adding to 400107111 its reverse (111701004), we get a palindrome (511808115).

The spelling of 400107111 in words is "four hundred million, one hundred seven thousand, one hundred eleven".