3521740 has 12 divisors (see below), whose sum is σ = 7395696. Its totient is φ = 1408688.

The previous prime is 3521729. The next prime is 3521747. The reversal of 3521740 is 471253.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (3521747) 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, 88024 + ... + 88063.

It is an arithmetic number, because the mean of its divisors is an integer number (616308).

Almost surely, 2^3521740 is an apocalyptic number.

It is an amenable number.

3521740 is an abundant number, since it is smaller than the sum of its proper divisors (3873956).

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

3521740 is a wasteful number, since it uses less digits than its factorization.

3521740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176096 (or 176094 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 3521740 is about 1876.6299581963. The cubic root of 3521740 is about 152.1431592155.

Adding to 3521740 its reverse (471253), we get a palindrome (3992993).

The spelling of 3521740 in words is "three million, five hundred twenty-one thousand, seven hundred forty".