3642220 has 12 divisors (see below), whose sum is σ = 7648704. Its totient is φ = 1456880.

The previous prime is 3642209. The next prime is 3642227. The reversal of 3642220 is 222463.

3642220 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (3642227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91036 + ... + 91075.

It is an arithmetic number, because the mean of its divisors is an integer number (637392).

Almost surely, 2^3642220 is an apocalyptic number.

It is an amenable number.

3642220 is an abundant number, since it is smaller than the sum of its proper divisors (4006484).

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

3642220 is a wasteful number, since it uses less digits than its factorization.

3642220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182120 (or 182118 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 3642220 is about 1908.4601122371. The cubic root of 3642220 is about 153.8586998743.

Adding to 3642220 its reverse (222463), we get a palindrome (3864683).

The spelling of 3642220 in words is "three million, six hundred forty-two thousand, two hundred twenty".