3656260 has 12 divisors (see below), whose sum is σ = 7678188. Its totient is φ = 1462496.

The previous prime is 3656251. The next prime is 3656267. The reversal of 3656260 is 626563.

3656260 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2768896 + 887364 = 1664^2 + 942^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3656267) 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, 91387 + ... + 91426.

It is an arithmetic number, because the mean of its divisors is an integer number (639849).

Almost surely, 2^3656260 is an apocalyptic number.

It is an amenable number.

3656260 is an abundant number, since it is smaller than the sum of its proper divisors (4021928).

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

3656260 is a wasteful number, since it uses less digits than its factorization.

3656260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182822 (or 182820 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 3656260 is about 1912.1349324773. The cubic root of 3656260 is about 154.0561441435.

It can be divided in two parts, 3656 and 260, that added together give a triangular number (3916 = T₈₈).

The spelling of 3656260 in words is "three million, six hundred fifty-six thousand, two hundred sixty".