245240530 has 16 divisors (see below), whose sum is σ = 456655320. Its totient is φ = 94713472.

The previous prime is 245240519. The next prime is 245240531. The reversal of 245240530 is 35042542.

245240530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 229007689 + 16232841 = 15133^2 + 4029^2 .

It is a junction number, because it is equal to n+sod(n) for n = 245240495 and 245240504.

It is not an unprimeable number, because it can be changed into a prime (245240531) 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, 422539 + ... + 423118.

Almost surely, 2^245240530 is an apocalyptic number.

245240530 is a deficient number, since it is larger than the sum of its proper divisors (211414790).

245240530 is a wasteful number, since it uses less digits than its factorization.

245240530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845693.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 245240530 is about 15660.1574066163. The cubic root of 245240530 is about 625.9371796086.

The spelling of 245240530 in words is "two hundred forty-five million, two hundred forty thousand, five hundred thirty".