5128540 has 24 divisors (see below), whose sum is σ = 11239200. Its totient is φ = 1962048.

The previous prime is 5128523. The next prime is 5128549. The reversal of 5128540 is 458215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5128549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5115 + ... + 6034.

It is an arithmetic number, because the mean of its divisors is an integer number (468300).

Almost surely, 2^5128540 is an apocalyptic number.

It is an amenable number.

5128540 is an abundant number, since it is smaller than the sum of its proper divisors (6110660).

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

5128540 is a wasteful number, since it uses less digits than its factorization.

5128540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11181 (or 11179 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 5128540 is about 2264.6280047725. The cubic root of 5128540 is about 172.4505494324.

The spelling of 5128540 in words is "five million, one hundred twenty-eight thousand, five hundred forty".