523312242 has 8 divisors (see below), whose sum is σ = 1046624496. Its totient is φ = 174437412.

The previous prime is 523312217. The next prime is 523312247. The reversal of 523312242 is 242213325.

It is a sphenic number, since it is the product of 3 distinct primes.

523312242 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (523312247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43609348 + ... + 43609359.

It is an arithmetic number, because the mean of its divisors is an integer number (130828062).

Almost surely, 2^523312242 is an apocalyptic number.

523312242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

523312242 is a wasteful number, since it uses less digits than its factorization.

523312242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87218712.

The product of its digits is 2880, while the sum is 24.

The square root of 523312242 is about 22876.0189281265. The cubic root of 523312242 is about 805.8489260738.

Adding to 523312242 its reverse (242213325), we get a palindrome (765525567).

The spelling of 523312242 in words is "five hundred twenty-three million, three hundred twelve thousand, two hundred forty-two".