523688342 has 4 divisors (see below), whose sum is σ = 785532516. Its totient is φ = 261844170.

The previous prime is 523688339. The next prime is 523688423. The reversal of 523688342 is 243886325.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 523688342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130922084 + ... + 130922087.

It is an arithmetic number, because the mean of its divisors is an integer number (196383129).

Almost surely, 2^523688342 is an apocalyptic number.

523688342 is a deficient number, since it is larger than the sum of its proper divisors (261844174).

523688342 is a wasteful number, since it uses less digits than its factorization.

523688342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261844173.

The product of its digits is 276480, while the sum is 41.

The square root of 523688342 is about 22884.2378505381. The cubic root of 523688342 is about 806.0419320709.

The spelling of 523688342 in words is "five hundred twenty-three million, six hundred eighty-eight thousand, three hundred forty-two".