3420865040 has 40 divisors (see below), whose sum is σ = 7966900800. Its totient is φ = 1366042496.

The previous prime is 3420865039. The next prime is 3420865079. The reversal of 3420865040 is 405680243.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 3420864988 and 3420865006.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12227 + ... + 83613.

It is an arithmetic number, because the mean of its divisors is an integer number (199172520).

Almost surely, 2^3420865040 is an apocalyptic number.

It is an amenable number.

3420865040 is an abundant number, since it is smaller than the sum of its proper divisors (4546035760).

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

3420865040 is a wasteful number, since it uses less digits than its factorization.

3420865040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71999 (or 71993 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 3420865040 is about 58488.1615371863. The cubic root of 3420865040 is about 1506.7642713111.

The spelling of 3420865040 in words is "three billion, four hundred twenty million, eight hundred sixty-five thousand, forty".