3685568380 has 48 divisors (see below), whose sum is σ = 8825362560. Its totient is φ = 1280775168.

The previous prime is 3685568371. The next prime is 3685568473. The reversal of 3685568380 is 838655863.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 412500 + ... + 421339.

It is an arithmetic number, because the mean of its divisors is an integer number (183861720).

Almost surely, 2^3685568380 is an apocalyptic number.

It is an amenable number.

3685568380 is an abundant number, since it is smaller than the sum of its proper divisors (5139794180).

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

3685568380 is a wasteful number, since it uses less digits than its factorization.

3685568380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833878 (or 833876 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 52.

The square root of 3685568380 is about 60708.8822166905. The cubic root of 3685568380 is about 1544.6668433975. Note that the first 3 decimals are identical.

The spelling of 3685568380 in words is "three billion, six hundred eighty-five million, five hundred sixty-eight thousand, three hundred eighty".