7875240 has 128 divisors (see below), whose sum is σ = 25574400. Its totient is φ = 1935360.

The previous prime is 7875227. The next prime is 7875281. The reversal of 7875240 is 425787.

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, 107844 + ... + 107916.

It is an arithmetic number, because the mean of its divisors is an integer number (199800).

Almost surely, 2^7875240 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 7875240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12787200).

7875240 is an abundant number, since it is smaller than the sum of its proper divisors (17699160).

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

7875240 is a wasteful number, since it uses less digits than its factorization.

7875240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147 (or 143 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 7875240 is about 2806.2858015534. The cubic root of 7875240 is about 198.9548814827.

The spelling of 7875240 in words is "seven million, eight hundred seventy-five thousand, two hundred forty".