3646218 has 8 divisors (see below), whose sum is σ = 7292448. Its totient is φ = 1215404.

The previous prime is 3646187. The next prime is 3646219. The reversal of 3646218 is 8126463.

3646218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

3646218 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (3646219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 303846 + ... + 303857.

It is an arithmetic number, because the mean of its divisors is an integer number (911556).

Almost surely, 2^3646218 is an apocalyptic number.

3646218 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3646218 is a wasteful number, since it uses less digits than its factorization.

3646218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607708.

The product of its digits is 6912, while the sum is 30.

The square root of 3646218 is about 1909.5072662863. The cubic root of 3646218 is about 153.9149752730.

The spelling of 3646218 in words is "three million, six hundred forty-six thousand, two hundred eighteen".