3280128 has 36 divisors (see below), whose sum is σ = 8731968. Its totient is φ = 1093120.

The previous prime is 3280127. The next prime is 3280139. The reversal of 3280128 is 8210823.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 3280098 and 3280107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3280127) 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, 1368 + ... + 2903.

Almost surely, 2^3280128 is an apocalyptic number.

It is an amenable number.

3280128 is an abundant number, since it is smaller than the sum of its proper divisors (5451840).

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

3280128 is an equidigital number, since it uses as much as digits as its factorization.

3280128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4290 (or 4276 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 3280128 is about 1811.1123653711. The cubic root of 3280128 is about 148.5811095411.

The spelling of 3280128 in words is "three million, two hundred eighty thousand, one hundred twenty-eight".