3813868404 has 72 divisors (see below), whose sum is σ = 10176333440. Its totient is φ = 1201018752.

The previous prime is 3813868397. The next prime is 3813868433. The reversal of 3813868404 is 4048683183.

It is a self number, because there is not a number n which added to its sum of digits gives 3813868404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 243432 + ... + 258624.

Almost surely, 2^3813868404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3813868404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5088166720).

3813868404 is an abundant number, since it is smaller than the sum of its proper divisors (6362465036).

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

3813868404 is a wasteful number, since it uses less digits than its factorization.

3813868404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15589 (or 15584 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 45.

The square root of 3813868404 is about 61756.5251936992. The cubic root of 3813868404 is about 1562.3868245621.

The spelling of 3813868404 in words is "three billion, eight hundred thirteen million, eight hundred sixty-eight thousand, four hundred four".