3128250 has 64 divisors (see below), whose sum is σ = 8072064. Its totient is φ = 806400.

The previous prime is 3128249. The next prime is 3128291. The reversal of 3128250 is 528213.

It is a Curzon 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, 32202 + ... + 32298.

It is an arithmetic number, because the mean of its divisors is an integer number (126126).

Almost surely, 2^3128250 is an apocalyptic number.

3128250 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3128250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4036032).

3128250 is an abundant number, since it is smaller than the sum of its proper divisors (4943814).

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

3128250 is a wasteful number, since it uses less digits than its factorization.

3128250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160 (or 150 counting only the distinct ones).

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

The square root of 3128250 is about 1768.6859529040. The cubic root of 3128250 is about 146.2515523248.

The spelling of 3128250 in words is "three million, one hundred twenty-eight thousand, two hundred fifty".