3667220 has 12 divisors (see below), whose sum is σ = 7701204. Its totient is φ = 1466880.

The previous prime is 3667219. The next prime is 3667231. The reversal of 3667220 is 227663.

It can be written as a sum of positive squares in 2 ways, for example, as 749956 + 2917264 = 866^2 + 1708^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3667220.

It is a congruent number.

It is an unprimeable number.

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, 91661 + ... + 91700.

It is an arithmetic number, because the mean of its divisors is an integer number (641767).

Almost surely, 2^3667220 is an apocalyptic number.

It is an amenable number.

3667220 is an abundant number, since it is smaller than the sum of its proper divisors (4033984).

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

3667220 is a wasteful number, since it uses less digits than its factorization.

3667220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183370 (or 183368 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 3667220 is about 1914.9986945165. The cubic root of 3667220 is about 154.2099234189.

The spelling of 3667220 in words is "three million, six hundred sixty-seven thousand, two hundred twenty".