3645830 has 8 divisors (see below), whose sum is σ = 6562512. Its totient is φ = 1458328.

The previous prime is 3645823. The next prime is 3645877. The reversal of 3645830 is 385463.

3645830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 3645793 and 3645802.

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 3 ways as a sum of consecutive naturals, for example, 182282 + ... + 182301.

It is an arithmetic number, because the mean of its divisors is an integer number (820314).

Almost surely, 2^3645830 is an apocalyptic number.

3645830 is a deficient number, since it is larger than the sum of its proper divisors (2916682).

3645830 is a wasteful number, since it uses less digits than its factorization.

3645830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364590.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 3645830 is about 1909.4056666932. The cubic root of 3645830 is about 153.9095156315.

The spelling of 3645830 in words is "three million, six hundred forty-five thousand, eight hundred thirty".