4100405 has 8 divisors (see below), whose sum is σ = 4953984. Its totient is φ = 3258000.

The previous prime is 4100399. The next prime is 4100407. The reversal of 4100405 is 5040014.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4100405 - 2¹⁶ = 4034869 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4100405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4100407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1961 + ... + 3470.

It is an arithmetic number, because the mean of its divisors is an integer number (619248).

Almost surely, 2^4100405 is an apocalyptic number.

It is an amenable number.

4100405 is a deficient number, since it is larger than the sum of its proper divisors (853579).

4100405 is a wasteful number, since it uses less digits than its factorization.

4100405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5587.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 4100405 is about 2024.9456782837. The cubic root of 4100405 is about 160.0573362219.

Adding to 4100405 its reverse (5040014), we get a palindrome (9140419).

The spelling of 4100405 in words is "four million, one hundred thousand, four hundred five".