3521444 has 6 divisors (see below), whose sum is σ = 6162534. Its totient is φ = 1760720.

The previous prime is 3521437. The next prime is 3521473. The reversal of 3521444 is 4441253.

It can be written as a sum of positive squares in only one way, i.e., 2439844 + 1081600 = 1562^2 + 1040^2 .

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 as a sum of consecutive naturals, namely, 440177 + ... + 440184.

It is an arithmetic number, because the mean of its divisors is an integer number (1027089).

Almost surely, 2^3521444 is an apocalyptic number.

It is an amenable number.

3521444 is a deficient number, since it is larger than the sum of its proper divisors (2641090).

3521444 is a wasteful number, since it uses less digits than its factorization.

3521444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880365 (or 880363 counting only the distinct ones).

The product of its digits is 1920, while the sum is 23.

The square root of 3521444 is about 1876.5510917638. The cubic root of 3521444 is about 152.1388965843.

Adding to 3521444 its reverse (4441253), we get a palindrome (7962697).

The spelling of 3521444 in words is "three million, five hundred twenty-one thousand, four hundred forty-four".