8120450 has 54 divisors (see below), whose sum is σ = 16899867. Its totient is φ = 2901600.

The previous prime is 8120393. The next prime is 8120459. The reversal of 8120450 is 540218.

It can be written as a sum of positive squares in 5 ways, for example, as 508369 + 7612081 = 713^2 + 2759^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=2015.

It is not an unprimeable number, because it can be changed into a prime (8120459) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 261935 + ... + 261965.

Almost surely, 2^8120450 is an apocalyptic number.

8120450 is an abundant number, since it is smaller than the sum of its proper divisors (8779417).

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

8120450 is a wasteful number, since it uses less digits than its factorization.

8120450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100 (or 51 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 8120450 is about 2849.6403281818. The cubic root of 8120450 is about 200.9987541485.

Adding to 8120450 its reverse (540218), we get a palindrome (8660668).

The spelling of 8120450 in words is "eight million, one hundred twenty thousand, four hundred fifty".