3644630 has 32 divisors (see below), whose sum is σ = 7581600. Its totient is φ = 1246720.

The previous prime is 3644629. The next prime is 3644653. The reversal of 3644630 is 364463.

It is a self number, because there is not a number n which added to its sum of digits gives 3644630.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 896 + ... + 2844.

It is an arithmetic number, because the mean of its divisors is an integer number (236925).

Almost surely, 2^3644630 is an apocalyptic number.

3644630 is an abundant number, since it is smaller than the sum of its proper divisors (3936970).

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

3644630 is a wasteful number, since it uses less digits than its factorization.

3644630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1984.

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 3644630 is about 1909.0914069263. The cubic root of 3644630 is about 153.8926276905.

It can be divided in two parts, 364 and 4630, that added together give a palindrome (4994).

The spelling of 3644630 in words is "three million, six hundred forty-four thousand, six hundred thirty".