3905398340 has 24 divisors (see below), whose sum is σ = 8203776000. Its totient is φ = 1561694688.

The previous prime is 3905398327. The next prime is 3905398351. The reversal of 3905398340 is 438935093.

It is a junction number, because it is equal to n+sod(n) for n = 3905398291 and 3905398300.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44411 + ... + 98909.

It is an arithmetic number, because the mean of its divisors is an integer number (341824000).

Almost surely, 2^3905398340 is an apocalyptic number.

It is an amenable number.

3905398340 is an abundant number, since it is smaller than the sum of its proper divisors (4298377660).

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

3905398340 is a wasteful number, since it uses less digits than its factorization.

3905398340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58091 (or 58089 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 44.

The square root of 3905398340 is about 62493.1863485932. The cubic root of 3905398340 is about 1574.7868481176.

The spelling of 3905398340 in words is "three billion, nine hundred five million, three hundred ninety-eight thousand, three hundred forty".