8725140 has 36 divisors (see below), whose sum is σ = 26466804. Its totient is φ = 2326656.

The previous prime is 8725139. The next prime is 8725141. The reversal of 8725140 is 415278.

It is an interprime number because it is at equal distance from previous prime (8725139) and next prime (8725141).

It can be written as a sum of positive squares in 2 ways, for example, as 1140624 + 7584516 = 1068^2 + 2754^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×8725140² = 152256136039200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8725141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24057 + ... + 24416.

It is an arithmetic number, because the mean of its divisors is an integer number (735189).

Almost surely, 2^8725140 is an apocalyptic number.

It is an amenable number.

8725140 is an abundant number, since it is smaller than the sum of its proper divisors (17741664).

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

8725140 is a wasteful number, since it uses less digits than its factorization.

8725140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48488 (or 48483 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 8725140 is about 2953.8347956512. The cubic root of 8725140 is about 205.8689272078.

The spelling of 8725140 in words is "eight million, seven hundred twenty-five thousand, one hundred forty".