522157042 has 8 divisors (see below), whose sum is σ = 854438832. Its totient is φ = 237344100.

The previous prime is 522157039. The next prime is 522157073. The reversal of 522157042 is 240751225.

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

It is a self number, because there is not a number n which added to its sum of digits gives 522157042.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11867184 + ... + 11867227.

It is an arithmetic number, because the mean of its divisors is an integer number (106804854).

Almost surely, 2^522157042 is an apocalyptic number.

522157042 is a deficient number, since it is larger than the sum of its proper divisors (332281790).

522157042 is a wasteful number, since it uses less digits than its factorization.

522157042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23734424.

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 522157042 is about 22850.7558299501. The cubic root of 522157042 is about 805.2555247616.

The spelling of 522157042 in words is "five hundred twenty-two million, one hundred fifty-seven thousand, forty-two".