3520120500 has 288 divisors, whose sum is σ = 12592419840. Its totient is φ = 820627200.

The previous prime is 3520120493. The next prime is 3520120529. The reversal of 3520120500 is 50210253.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1109917 + ... + 1113083.

It is an arithmetic number, because the mean of its divisors is an integer number (43723680).

Almost surely, 2^3520120500 is an apocalyptic number.

3520120500 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 3520120500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6296209920).

3520120500 is an abundant number, since it is smaller than the sum of its proper divisors (9072299340).

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

3520120500 is a wasteful number, since it uses less digits than its factorization.

3520120500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3224 (or 3209 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 3520120500 is about 59330.6034016173. The cubic root of 3520120500 is about 1521.1983422797.

Adding to 3520120500 its reverse (50210253), we get a palindrome (3570330753).

The spelling of 3520120500 in words is "three billion, five hundred twenty million, one hundred twenty thousand, five hundred".