3905219268 has 54 divisors (see below), whose sum is σ = 10036351962. Its totient is φ = 1280355840.

The previous prime is 3905219261. The next prime is 3905219281. The reversal of 3905219268 is 8629125093.

3905219268 is a `hidden beast` number, since 39 + 0 + 521 + 92 + 6 + 8 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 1038901824 + 2866317444 = 32232^2 + 53538^2 .

It is not an unprimeable number, because it can be changed into a prime (3905219261) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 119380 + ... + 148532.

Almost surely, 2^3905219268 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 3905219268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5018175981).

3905219268 is an abundant number, since it is smaller than the sum of its proper divisors (6131132694).

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

3905219268 is a wasteful number, since it uses less digits than its factorization.

3905219268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29285 (or 29219 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 3905219268 is about 62491.7535999751. The cubic root of 3905219268 is about 1574.7627784824.

The spelling of 3905219268 in words is "three billion, nine hundred five million, two hundred nineteen thousand, two hundred sixty-eight".