3803640405 has 32 divisors (see below), whose sum is σ = 6120990720. Its totient is φ = 2016924480.

The previous prime is 3803640391. The next prime is 3803640409. The reversal of 3803640405 is 5040463083.

3803640405 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3803640405 - 2⁸ = 3803640149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3803640409) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2439016 + ... + 2440574.

It is an arithmetic number, because the mean of its divisors is an integer number (191280960).

Almost surely, 2^3803640405 is an apocalyptic number.

It is an amenable number.

3803640405 is a deficient number, since it is larger than the sum of its proper divisors (2317350315).

3803640405 is a wasteful number, since it uses less digits than its factorization.

3803640405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2401.

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 3803640405 is about 61673.6605448388. The cubic root of 3803640405 is about 1560.9889090604.

The spelling of 3803640405 in words is "three billion, eight hundred three million, six hundred forty thousand, four hundred five".