245227242 has 32 divisors (see below), whose sum is σ = 551150208. Its totient is φ = 72173376.

The previous prime is 245227223. The next prime is 245227253. The reversal of 245227242 is 242722542.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66553 + ... + 70140.

It is an arithmetic number, because the mean of its divisors is an integer number (17223444).

Almost surely, 2^245227242 is an apocalyptic number.

245227242 is an abundant number, since it is smaller than the sum of its proper divisors (305922966).

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

245227242 is a wasteful number, since it uses less digits than its factorization.

245227242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136734.

The product of its digits is 17920, while the sum is 30.

The square root of 245227242 is about 15659.7331394887. The cubic root of 245227242 is about 625.9258742404.

Adding to 245227242 its reverse (242722542), we get a palindrome (487949784).

The spelling of 245227242 in words is "two hundred forty-five million, two hundred twenty-seven thousand, two hundred forty-two".