3420397256 has 16 divisors (see below), whose sum is σ = 6413904000. Its totient is φ = 1710022864.

The previous prime is 3420397231. The next prime is 3420397259. The reversal of 3420397256 is 6527930243.

It is not an unprimeable number, because it can be changed into a prime (3420397259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101645 + ... + 131043.

It is an arithmetic number, because the mean of its divisors is an integer number (400869000).

Almost surely, 2^3420397256 is an apocalyptic number.

It is an amenable number.

3420397256 is a deficient number, since it is larger than the sum of its proper divisors (2993506744).

3420397256 is a wasteful number, since it uses less digits than its factorization.

3420397256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43948 (or 43944 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 41.

The square root of 3420397256 is about 58484.1624373642. The cubic root of 3420397256 is about 1506.6955876750.

The spelling of 3420397256 in words is "three billion, four hundred twenty million, three hundred ninety-seven thousand, two hundred fifty-six".