3521144 has 16 divisors (see below), whose sum is σ = 7202520. Its totient is φ = 1600480.

The previous prime is 3521143. The next prime is 3521153. The reversal of 3521144 is 4411253.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3521143) 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 3 ways as a sum of consecutive naturals, for example, 19919 + ... + 20094.

Almost surely, 2^3521144 is an apocalyptic number.

It is an amenable number.

3521144 is an abundant number, since it is smaller than the sum of its proper divisors (3681376).

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

3521144 is a wasteful number, since it uses less digits than its factorization.

3521144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40030 (or 40026 counting only the distinct ones).

The product of its digits is 480, while the sum is 20.

The square root of 3521144 is about 1876.4711561865. The cubic root of 3521144 is about 152.1345761062.

Adding to 3521144 its reverse (4411253), we get a palindrome (7932397).

The spelling of 3521144 in words is "three million, five hundred twenty-one thousand, one hundred forty-four".