3640630 has 16 divisors (see below), whose sum is σ = 7489440. Its totient is φ = 1248192.

The previous prime is 3640597. The next prime is 3640633. The reversal of 3640630 is 360463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3640633) 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 7 ways as a sum of consecutive naturals, for example, 25935 + ... + 26074.

It is an arithmetic number, because the mean of its divisors is an integer number (468090).

Almost surely, 2^3640630 is an apocalyptic number.

3640630 is an abundant number, since it is smaller than the sum of its proper divisors (3848810).

3640630 is a wasteful number, since it uses less digits than its factorization.

3640630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52023.

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 3640630 is about 1908.0435005523. The cubic root of 3640630 is about 153.8363077673.

The spelling of 3640630 in words is "three million, six hundred forty thousand, six hundred thirty".