3826405 has 16 divisors (see below), whose sum is σ = 5184000. Its totient is φ = 2685760.

The previous prime is 3826399. The next prime is 3826409. The reversal of 3826405 is 5046283.

3826405 is nontrivially palindromic in base 12.

It is not a de Polignac number, because 3826405 - 2⁵ = 3826373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3826409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 396 + ... + 2794.

It is an arithmetic number, because the mean of its divisors is an integer number (324000).

Almost surely, 2^3826405 is an apocalyptic number.

It is an amenable number.

3826405 is a deficient number, since it is larger than the sum of its proper divisors (1357595).

3826405 is a wasteful number, since it uses less digits than its factorization.

3826405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2444.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 3826405 is about 1956.1198838517. The cubic root of 3826405 is about 156.4096863461.

The spelling of 3826405 in words is "three million, eight hundred twenty-six thousand, four hundred five".