3688620256 has 24 divisors (see below), whose sum is σ = 7290244080. Its totient is φ = 1837129728.

The previous prime is 3688620251. The next prime is 3688620259. The reversal of 3688620256 is 6520268863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3688620251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216036 + ... + 232483.

It is an arithmetic number, because the mean of its divisors is an integer number (303760170).

Almost surely, 2^3688620256 is an apocalyptic number.

It is an amenable number.

3688620256 is a deficient number, since it is larger than the sum of its proper divisors (3601623824).

3688620256 is a wasteful number, since it uses less digits than its factorization.

3688620256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448786 (or 448778 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 46.

The square root of 3688620256 is about 60734.0123489302. The cubic root of 3688620256 is about 1545.0930853032.

The spelling of 3688620256 in words is "three billion, six hundred eighty-eight million, six hundred twenty thousand, two hundred fifty-six".