3251648 has 42 divisors (see below), whose sum is σ = 6879336. Its totient is φ = 1522048.

The previous prime is 3251609. The next prime is 3251653. The reversal of 3251648 is 8461523.

Its product of digits (5760) is a multiple of the sum of its prime divisors (72).

It is a self number, because there is not a number n which added to its sum of digits gives 3251648.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 69161 + ... + 69207.

Almost surely, 2^3251648 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 3251648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3439668).

3251648 is an abundant number, since it is smaller than the sum of its proper divisors (3627688).

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

3251648 is an equidigital number, since it uses as much as digits as its factorization.

3251648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129 (or 72 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 3251648 is about 1803.2326527656. The cubic root of 3251648 is about 148.1498360795.

The spelling of 3251648 in words is "three million, two hundred fifty-one thousand, six hundred forty-eight".