3522520 has 32 divisors (see below), whose sum is σ = 8028720. Its totient is φ = 1390720.

The previous prime is 3522503. The next prime is 3522521. The reversal of 3522520 is 252253.

3522520 = 22³ + 23³ + ... + 61³.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3522521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2790 + ... + 3850.

Almost surely, 2^3522520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3522520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4014360).

3522520 is an abundant number, since it is smaller than the sum of its proper divisors (4506200).

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

3522520 is a wasteful number, since it uses less digits than its factorization.

3522520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1155 (or 1151 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 3522520 is about 1876.8377660309. The cubic root of 3522520 is about 152.1543906810.

Adding to 3522520 its reverse (252253), we get a palindrome (3774773).

It can be divided in two parts, 35225 and 20, that added together give a triangular number (35245 = T₂₆₅).

The spelling of 3522520 in words is "three million, five hundred twenty-two thousand, five hundred twenty".