3520500 has 48 divisors (see below), whose sum is σ = 10256064. Its totient is φ = 938400.

The previous prime is 3520499. The next prime is 3520507. The reversal of 3520500 is 50253.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 3520500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3520507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 327 + ... + 2673.

It is an arithmetic number, because the mean of its divisors is an integer number (213668).

Almost surely, 2^3520500 is an apocalyptic number.

3520500 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3520500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5128032).

3520500 is an abundant number, since it is smaller than the sum of its proper divisors (6735564).

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

3520500 is a wasteful number, since it uses less digits than its factorization.

3520500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2369 (or 2357 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 15.

The square root of 3520500 is about 1876.2995496455. The cubic root of 3520500 is about 152.1253006509.

Adding to 3520500 its reverse (50253), we get a palindrome (3570753).

The spelling of 3520500 in words is "three million, five hundred twenty thousand, five hundred".