8020540 has 24 divisors (see below), whose sum is σ = 18374832. Its totient is φ = 2916480.

The previous prime is 8020517. The next prime is 8020553. The reversal of 8020540 is 450208.

It is a happy number.

8020540 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18009 + ... + 18448.

It is an arithmetic number, because the mean of its divisors is an integer number (765618).

Almost surely, 2^8020540 is an apocalyptic number.

It is an amenable number.

8020540 is an abundant number, since it is smaller than the sum of its proper divisors (10354292).

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

8020540 is a wasteful number, since it uses less digits than its factorization.

8020540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36477 (or 36475 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 8020540 is about 2832.0557904109. The cubic root of 8020540 is about 200.1710203851.

Adding to 8020540 its reverse (450208), we get a palindrome (8470748).

The spelling of 8020540 in words is "eight million, twenty thousand, five hundred forty".