3204656 has 80 divisors (see below), whose sum is σ = 7999488. Its totient is φ = 1209600.

The previous prime is 3204647. The next prime is 3204667. The reversal of 3204656 is 6564023.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a zygodrome in base 2.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45101 + ... + 45171.

Almost surely, 2^3204656 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 3204656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3999744).

3204656 is an abundant number, since it is smaller than the sum of its proper divisors (4794832).

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

3204656 is a wasteful number, since it uses less digits than its factorization.

3204656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 3204656 is about 1790.1553005256. The cubic root of 3204656 is about 147.4326955216.

3204656 divided by its sum of digits (26) gives a triangular number (123256 = T₄₉₆).

Adding to 3204656 its reverse (6564023), we get a palindrome (9768679).

The spelling of 3204656 in words is "three million, two hundred four thousand, six hundred fifty-six".