3661441 has 16 divisors (see below), whose sum is σ = 4423680. Its totient is φ = 2964240.

The previous prime is 3661429. The next prime is 3661447. The reversal of 3661441 is 1441663.

It is a cyclic number.

It is not a de Polignac number, because 3661441 - 2¹¹ = 3659393 is a prime.

It is a Duffinian number.

3661441 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3661447) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 10020 + ... + 10378.

It is an arithmetic number, because the mean of its divisors is an integer number (276480).

Almost surely, 2^3661441 is an apocalyptic number.

3661441 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3661441 is a deficient number, since it is larger than the sum of its proper divisors (762239).

3661441 is a wasteful number, since it uses less digits than its factorization.

3661441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444.

The product of its digits is 1728, while the sum is 25.

The square root of 3661441 is about 1913.4892212918. The cubic root of 3661441 is about 154.1288767695.

The spelling of 3661441 in words is "three million, six hundred sixty-one thousand, four hundred forty-one".