3638930 has 16 divisors (see below), whose sum is σ = 6592320. Its totient is φ = 1446192.

The previous prime is 3638923. The next prime is 3638941. The reversal of 3638930 is 398363.

It is a happy number.

3638930 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon 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 7 ways as a sum of consecutive naturals, for example, 581 + ... + 2759.

It is an arithmetic number, because the mean of its divisors is an integer number (412020).

Almost surely, 2^3638930 is an apocalyptic number.

3638930 is a deficient number, since it is larger than the sum of its proper divisors (2953390).

3638930 is a wasteful number, since it uses less digits than its factorization.

3638930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2353.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 3638930 is about 1907.5979660295. The cubic root of 3638930 is about 153.8123593079.

The spelling of 3638930 in words is "three million, six hundred thirty-eight thousand, nine hundred thirty".