8520940 has 24 divisors (see below), whose sum is σ = 18123840. Its totient is φ = 3364608.

The previous prime is 8520929. The next prime is 8520943. The reversal of 8520940 is 490258.

It is a happy number.

8520940 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 8520899 and 8520908.

It is not an unprimeable number, because it can be changed into a prime (8520943) 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, 1117 + ... + 4276.

It is an arithmetic number, because the mean of its divisors is an integer number (755160).

Almost surely, 2^8520940 is an apocalyptic number.

It is an amenable number.

8520940 is an abundant number, since it is smaller than the sum of its proper divisors (9602900).

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

8520940 is a wasteful number, since it uses less digits than its factorization.

8520940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5481 (or 5479 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 8520940 is about 2919.0649187711. The cubic root of 8520940 is about 204.2502056212.

It can be divided in two parts, 85 and 20940, that added together give a square (21025 = 145²).

The spelling of 8520940 in words is "eight million, five hundred twenty thousand, nine hundred forty".