3205648 has 40 divisors (see below), whose sum is σ = 6713856. Its totient is φ = 1478400.

The previous prime is 3205637. The next prime is 3205651. The reversal of 3205648 is 8465023.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11268 + ... + 11548.

Almost surely, 2^3205648 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 3205648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3356928).

3205648 is an abundant number, since it is smaller than the sum of its proper divisors (3508208).

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

3205648 is a wasteful number, since it uses less digits than its factorization.

3205648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343 (or 337 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 3205648 is about 1790.4323500205. The cubic root of 3205648 is about 147.4479065298.

The spelling of 3205648 in words is "three million, two hundred five thousand, six hundred forty-eight".