3644138 has 8 divisors (see below), whose sum is σ = 5509632. Its totient is φ = 1807596.

The previous prime is 3644129. The next prime is 3644149. The reversal of 3644138 is 8314463.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3644138.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6920 + ... + 7427.

It is an arithmetic number, because the mean of its divisors is an integer number (688704).

Almost surely, 2^3644138 is an apocalyptic number.

3644138 is a deficient number, since it is larger than the sum of its proper divisors (1865494).

3644138 is a wasteful number, since it uses less digits than its factorization.

3644138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14476.

The product of its digits is 6912, while the sum is 29.

The square root of 3644138 is about 1908.9625454681. The cubic root of 3644138 is about 153.8857025632.

The spelling of 3644138 in words is "three million, six hundred forty-four thousand, one hundred thirty-eight".