3205500 has 48 divisors (see below), whose sum is σ = 9338784. Its totient is φ = 854400.

The previous prime is 3205459. The next prime is 3205507. The reversal of 3205500 is 55023.

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

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 3205500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3205507) 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, 432 + ... + 2568.

It is an arithmetic number, because the mean of its divisors is an integer number (194558).

Almost surely, 2^3205500 is an apocalyptic number.

3205500 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 3205500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4669392).

3205500 is an abundant number, since it is smaller than the sum of its proper divisors (6133284).

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

3205500 is a wasteful number, since it uses less digits than its factorization.

3205500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2159 (or 2147 counting only the distinct ones).

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

The square root of 3205500 is about 1790.3910187442. The cubic root of 3205500 is about 147.4456373447.

The spelling of 3205500 in words is "three million, two hundred five thousand, five hundred".