3642556 has 36 divisors (see below), whose sum is σ = 7117488. Its totient is φ = 1627648.

The previous prime is 3642497. The next prime is 3642559. The reversal of 3642556 is 6552463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3642559) 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 11 ways as a sum of consecutive naturals, for example, 26520 + ... + 26656.

It is an arithmetic number, because the mean of its divisors is an integer number (197708).

Almost surely, 2^3642556 is an apocalyptic number.

It is an amenable number.

3642556 is a deficient number, since it is larger than the sum of its proper divisors (3474932).

3642556 is a wasteful number, since it uses less digits than its factorization.

3642556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198 (or 179 counting only the distinct ones).

The product of its digits is 21600, while the sum is 31.

The square root of 3642556 is about 1908.5481392933. The cubic root of 3642556 is about 153.8634309571.

It can be divided in two parts, 36425 and 56, that added together give a square (36481 = 191²).

The spelling of 3642556 in words is "three million, six hundred forty-two thousand, five hundred fifty-six".