3245978646 has 24 divisors (see below), whose sum is σ = 7035297984. Its totient is φ = 1081632240.

The previous prime is 3245978641. The next prime is 3245978699. The reversal of 3245978646 is 6468795423.

3245978646 is a `hidden beast` number, since 3 + 2 + 4 + 597 + 8 + 6 + 46 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 3245978592 and 3245978601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3245978641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28536 + ... + 85476.

It is an arithmetic number, because the mean of its divisors is an integer number (293137416).

Almost surely, 2^3245978646 is an apocalyptic number.

3245978646 is an abundant number, since it is smaller than the sum of its proper divisors (3789319338).

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

3245978646 is a wasteful number, since it uses less digits than its factorization.

3245978646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60116 (or 60113 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 54.

The square root of 3245978646 is about 56973.4907303388. The cubic root of 3245978646 is about 1480.6368463897.

The spelling of 3245978646 in words is "three billion, two hundred forty-five million, nine hundred seventy-eight thousand, six hundred forty-six".