3250816 has 32 divisors (see below), whose sum is σ = 6563700. Its totient is φ = 1603584.

The previous prime is 3250811. The next prime is 3250817. The reversal of 3250816 is 6180523.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3240000 + 10816 = 1800^2 + 104^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is an Ulam number.

It is a nialpdrome in base 15.

It is a zygodrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (3250811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13836 + ... + 14068.

Almost surely, 2^3250816 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 3250816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3281850).

3250816 is an abundant number, since it is smaller than the sum of its proper divisors (3312884).

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

3250816 is a wasteful number, since it uses less digits than its factorization.

3250816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356 (or 344 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 3250816 is about 1803.0019412081. The cubic root of 3250816 is about 148.1371992896.

The spelling of 3250816 in words is "three million, two hundred fifty thousand, eight hundred sixteen".