4061405 has 4 divisors (see below), whose sum is σ = 4873692. Its totient is φ = 3249120.

The previous prime is 4061401. The next prime is 4061429. The reversal of 4061405 is 5041604.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2353156 + 1708249 = 1534^2 + 1307^2 .

It is not a de Polignac number, because 4061405 - 2² = 4061401 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 (4061401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 406136 + ... + 406145.

It is an arithmetic number, because the mean of its divisors is an integer number (1218423).

Almost surely, 2^4061405 is an apocalyptic number.

It is an amenable number.

4061405 is a deficient number, since it is larger than the sum of its proper divisors (812287).

4061405 is an equidigital number, since it uses as much as digits as its factorization.

4061405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812286.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 4061405 is about 2015.2927826993. The cubic root of 4061405 is about 159.5482700967.

The spelling of 4061405 in words is "four million, sixty-one thousand, four hundred five".