3251280 has 160 divisors (see below), whose sum is σ = 11427840. Its totient is φ = 760320.

The previous prime is 3251279. The next prime is 3251317. The reversal of 3251280 is 821523.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 104865 + ... + 104895.

It is an arithmetic number, because the mean of its divisors is an integer number (71424).

Almost surely, 2^3251280 is an apocalyptic number.

3251280 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3251280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5713920).

3251280 is an abundant number, since it is smaller than the sum of its proper divisors (8176560).

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

3251280 is a wasteful number, since it uses less digits than its factorization.

3251280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89 (or 83 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 3251280 is about 1803.1306109098. The cubic root of 3251280 is about 148.1442469960.

The spelling of 3251280 in words is "three million, two hundred fifty-one thousand, two hundred eighty".