3625642218 has 32 divisors (see below), whose sum is σ = 8103436992. Its totient is φ = 1071881600.

The previous prime is 3625642201. The next prime is 3625642261. The reversal of 3625642218 is 8122465263.

3625642218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon 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, 667221 + ... + 672632.

It is an arithmetic number, because the mean of its divisors is an integer number (253232406).

Almost surely, 2^3625642218 is an apocalyptic number.

3625642218 is an abundant number, since it is smaller than the sum of its proper divisors (4477794774).

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

3625642218 is a wasteful number, since it uses less digits than its factorization.

3625642218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1339910.

The product of its digits is 138240, while the sum is 39.

The square root of 3625642218 is about 60213.3059879625. The cubic root of 3625642218 is about 1536.2491245973.

The spelling of 3625642218 in words is "three billion, six hundred twenty-five million, six hundred forty-two thousand, two hundred eighteen".