245215230 has 32 divisors (see below), whose sum is σ = 633788064. Its totient is φ = 60360576.

The previous prime is 245215211. The next prime is 245215231. The reversal of 245215230 is 32512542.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 245215230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245215231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 313989 + ... + 314768.

It is an arithmetic number, because the mean of its divisors is an integer number (19805877).

Almost surely, 2^245215230 is an apocalyptic number.

245215230 is an abundant number, since it is smaller than the sum of its proper divisors (388572834).

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

245215230 is a wasteful number, since it uses less digits than its factorization.

245215230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628780.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 245215230 is about 15659.3496033520. The cubic root of 245215230 is about 625.9156541356.

Adding to 245215230 its reverse (32512542), we get a palindrome (277727772).

The spelling of 245215230 in words is "two hundred forty-five million, two hundred fifteen thousand, two hundred thirty".