3641218 has 16 divisors (see below), whose sum is σ = 6281280. Its totient is φ = 1550736.

The previous prime is 3641201. The next prime is 3641219. The reversal of 3641218 is 8121463.

It is a junction number, because it is equal to n+sod(n) for n = 3641192 and 3641201.

It is not an unprimeable number, because it can be changed into a prime (3641219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1780 + ... + 3232.

It is an arithmetic number, because the mean of its divisors is an integer number (392580).

Almost surely, 2^3641218 is an apocalyptic number.

3641218 is a deficient number, since it is larger than the sum of its proper divisors (2640062).

3641218 is a wasteful number, since it uses less digits than its factorization.

3641218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1641.

The product of its digits is 1152, while the sum is 25.

The square root of 3641218 is about 1908.1975788686. The cubic root of 3641218 is about 153.8445893815.

The spelling of 3641218 in words is "three million, six hundred forty-one thousand, two hundred eighteen".