3505500 has 144 divisors (see below), whose sum is σ = 11924640. Its totient is φ = 864000.

The previous prime is 3505493. The next prime is 3505501. The reversal of 3505500 is 55053.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3505501) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 85480 + ... + 85520.

It is an arithmetic number, because the mean of its divisors is an integer number (82810).

Almost surely, 2^3505500 is an apocalyptic number.

3505500 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 3505500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5962320).

3505500 is an abundant number, since it is smaller than the sum of its proper divisors (8419140).

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

3505500 is a wasteful number, since it uses less digits than its factorization.

3505500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85 (or 70 counting only the distinct ones).

The product of its (nonzero) digits is 375, while the sum is 18.

The square root of 3505500 is about 1872.2980531956. The cubic root of 3505500 is about 151.9089366829.

It can be divided in two parts, 3505 and 500, that added together give a triangular number (4005 = T₈₉).

The spelling of 3505500 in words is "three million, five hundred five thousand, five hundred".