3125240 has 64 divisors (see below), whose sum is σ = 7603200. Its totient is φ = 1153152.

The previous prime is 3125219. The next prime is 3125257. The reversal of 3125240 is 425213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39521 + ... + 39599.

It is an arithmetic number, because the mean of its divisors is an integer number (118800).

Almost surely, 2^3125240 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 3125240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3801600).

3125240 is an abundant number, since it is smaller than the sum of its proper divisors (4477960).

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

3125240 is a wasteful number, since it uses less digits than its factorization.

3125240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156 (or 152 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 3125240 is about 1767.8348339141. The cubic root of 3125240 is about 146.2046295575.

The spelling of 3125240 in words is "three million, one hundred twenty-five thousand, two hundred forty".