3550443 has 16 divisors (see below), whose sum is σ = 5187840. Its totient is φ = 2146464.

The previous prime is 3550439. The next prime is 3550447. The reversal of 3550443 is 3440553.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3550439) and next prime (3550447).

It is not a de Polignac number, because 3550443 - 2² = 3550439 is a prime.

3550443 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3550447) 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, 1530 + ... + 3072.

It is an arithmetic number, because the mean of its divisors is an integer number (324240).

Almost surely, 2^3550443 is an apocalyptic number.

3550443 is a deficient number, since it is larger than the sum of its proper divisors (1637397).

3550443 is a wasteful number, since it uses less digits than its factorization.

3550443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1618.

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 3550443 is about 1884.2619244680. The cubic root of 3550443 is about 152.5553753928. Note that the first 3 decimals are identical.

Adding to 3550443 its reverse (3440553), we get a palindrome (6990996).

It can be divided in two parts, 3550 and 443, that added together give a palindrome (3993).

The spelling of 3550443 in words is "three million, five hundred fifty thousand, four hundred forty-three".