3663444 has 36 divisors (see below), whose sum is σ = 8824704. Its totient is φ = 1182816.

The previous prime is 3663437. The next prime is 3663461. The reversal of 3663444 is 4443663.

It is a super-2 number, since 2×3663444² = 26841643882272, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 16317 + ... + 16539.

Almost surely, 2^3663444 is an apocalyptic number.

It is an amenable number.

3663444 is an abundant number, since it is smaller than the sum of its proper divisors (5161260).

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

3663444 is a wasteful number, since it uses less digits than its factorization.

3663444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304 (or 265 counting only the distinct ones).

The product of its digits is 20736, while the sum is 30.

The square root of 3663444 is about 1914.0125391439. The cubic root of 3663444 is about 154.1569771688.

The spelling of 3663444 in words is "three million, six hundred sixty-three thousand, four hundred forty-four".