3645590 has 32 divisors (see below), whose sum is σ = 7318080. Its totient is φ = 1298304.

The previous prime is 3645589. The next prime is 3645611. The reversal of 3645590 is 955463.

It is a happy number.

3645590 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a d-powerful number, because it can be written as 3⁷ + 6⁸ + 4⁶ + 5 + 5⁹ + 9⁴ + 0 .

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3287 + ... + 4253.

It is an arithmetic number, because the mean of its divisors is an integer number (228690).

Almost surely, 2^3645590 is an apocalyptic number.

3645590 is an abundant number, since it is smaller than the sum of its proper divisors (3672490).

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

3645590 is a wasteful number, since it uses less digits than its factorization.

3645590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 3645590 is about 1909.3428188777. The cubic root of 3645590 is about 153.9061383398.

The spelling of 3645590 in words is "three million, six hundred forty-five thousand, five hundred ninety".