3625218 has 12 divisors (see below), whose sum is σ = 7854678. Its totient is φ = 1208400.

The previous prime is 3625213. The next prime is 3625229. The reversal of 3625218 is 8125263.

It can be written as a sum of positive squares in only one way, i.e., 3470769 + 154449 = 1863^2 + 393^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3625191 and 3625200.

It is not an unprimeable number, because it can be changed into a prime (3625211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 100683 + ... + 100718.

Almost surely, 2^3625218 is an apocalyptic number.

3625218 is an abundant number, since it is smaller than the sum of its proper divisors (4229460).

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

3625218 is a wasteful number, since it uses less digits than its factorization.

3625218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201409 (or 201406 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 3625218 is about 1904.0005252100. Note that the first 3 decimals coincide. The cubic root of 3625218 is about 153.6189206022.

The spelling of 3625218 in words is "three million, six hundred twenty-five thousand, two hundred eighteen".