8540028 has 36 divisors (see below), whose sum is σ = 24671920. Its totient is φ = 2439936.

The previous prime is 8540027. The next prime is 8540033. The reversal of 8540028 is 8200458.

8540028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 8539983 and 8540010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8540027) 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, 16693 + ... + 17196.

Almost surely, 2^8540028 is an apocalyptic number.

It is an amenable number.

8540028 is an abundant number, since it is smaller than the sum of its proper divisors (16131892).

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

8540028 is a wasteful number, since it uses less digits than its factorization.

8540028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33906 (or 33901 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 8540028 is about 2922.3326299379. The cubic root of 8540028 is about 204.4026074425.

The spelling of 8540028 in words is "eight million, five hundred forty thousand, twenty-eight".