3648244 has 6 divisors (see below), whose sum is σ = 6384434. Its totient is φ = 1824120.

The previous prime is 3648241. The next prime is 3648263. The reversal of 3648244 is 4428463.

It can be written as a sum of positive squares in only one way, i.e., 3648100 + 144 = 1910^2 + 12^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3648241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 456027 + ... + 456034.

Almost surely, 2^3648244 is an apocalyptic number.

It is an amenable number.

3648244 is a deficient number, since it is larger than the sum of its proper divisors (2736190).

3648244 is a wasteful number, since it uses less digits than its factorization.

3648244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912065 (or 912063 counting only the distinct ones).

The product of its digits is 18432, while the sum is 31.

The square root of 3648244 is about 1910.0376959631. The cubic root of 3648244 is about 153.9434773174.

The spelling of 3648244 in words is "three million, six hundred forty-eight thousand, two hundred forty-four".