505240230 has 32 divisors (see below), whose sum is σ = 1322811648. Its totient is φ = 122482400.

The previous prime is 505240213. The next prime is 505240261. The reversal of 505240230 is 32042505.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 505240197 and 505240206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 765186 + ... + 765845.

It is an arithmetic number, because the mean of its divisors is an integer number (41337864).

Almost surely, 2^505240230 is an apocalyptic number.

505240230 is an abundant number, since it is smaller than the sum of its proper divisors (817571418).

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

505240230 is a wasteful number, since it uses less digits than its factorization.

505240230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1531052.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 505240230 is about 22477.5494660784. The cubic root of 505240230 is about 796.4636775207.

Adding to 505240230 its reverse (32042505), we get a palindrome (537282735).

The spelling of 505240230 in words is "five hundred five million, two hundred forty thousand, two hundred thirty".