3261648 has 40 divisors (see below), whose sum is σ = 9075808. Its totient is φ = 1003392.

The previous prime is 3261641. The next prime is 3261667. The reversal of 3261648 is 8461623.

It is a nude number because it is divisible by every one of its digits.

It is an Ulam number.

It is a zygodrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3261641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1990 + ... + 3237.

Almost surely, 2^3261648 is an apocalyptic number.

It is an amenable number.

3261648 is an abundant number, since it is smaller than the sum of its proper divisors (5814160).

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

3261648 is a wasteful number, since it uses less digits than its factorization.

3261648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5251 (or 5245 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

The square root of 3261648 is about 1806.0033222561. The cubic root of 3261648 is about 148.3015521975.

The spelling of 3261648 in words is "three million, two hundred sixty-one thousand, six hundred forty-eight".