3905436 has 12 divisors (see below), whose sum is σ = 9112712. Its totient is φ = 1301808.

The previous prime is 3905417. The next prime is 3905441. The reversal of 3905436 is 6345093.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162715 + ... + 162738.

Almost surely, 2^3905436 is an apocalyptic number.

It is an amenable number.

3905436 is an abundant number, since it is smaller than the sum of its proper divisors (5207276).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3905436 is a wasteful number, since it uses less digits than its factorization.

3905436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325460 (or 325458 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 3905436 is about 1976.2175993549. The cubic root of 3905436 is about 157.4791910024.

The spelling of 3905436 in words is "three million, nine hundred five thousand, four hundred thirty-six".