3804405 has 16 divisors (see below), whose sum is σ = 6640704. Its totient is φ = 1844480.

The previous prime is 3804397. The next prime is 3804419. The reversal of 3804405 is 5044083.

It is a happy number.

It is not a de Polignac number, because 3804405 - 2³ = 3804397 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11364 + ... + 11693.

It is an arithmetic number, because the mean of its divisors is an integer number (415044).

Almost surely, 2^3804405 is an apocalyptic number.

It is an amenable number.

3804405 is a deficient number, since it is larger than the sum of its proper divisors (2836299).

3804405 is a wasteful number, since it uses less digits than its factorization.

3804405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23076.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 3804405 is about 1950.4884003757. The cubic root of 3804405 is about 156.1093496966.

Adding to 3804405 its reverse (5044083), we get a palindrome (8848488).

It can be divided in two parts, 3 and 804405, that added together give a palindrome (804408).

The spelling of 3804405 in words is "three million, eight hundred four thousand, four hundred five".