3648444 has 24 divisors (see below), whose sum is σ = 8883840. Its totient is φ = 1163184.

The previous prime is 3648439. The next prime is 3648451. The reversal of 3648444 is 4448463.

It is a super-2 number, since 2×3648444² = 26622287242272, which contains 22 as substring.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6334 + ... + 6885.

It is an arithmetic number, because the mean of its divisors is an integer number (370160).

Almost surely, 2^3648444 is an apocalyptic number.

It is an amenable number.

3648444 is an abundant number, since it is smaller than the sum of its proper divisors (5235396).

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

3648444 is a wasteful number, since it uses less digits than its factorization.

3648444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13249 (or 13247 counting only the distinct ones).

The product of its digits is 36864, while the sum is 33.

The square root of 3648444 is about 1910.0900502332. The cubic root of 3648444 is about 153.9462903724.

The spelling of 3648444 in words is "three million, six hundred forty-eight thousand, four hundred forty-four".