522278142 has 16 divisors (see below), whose sum is σ = 1078252032. Its totient is φ = 168476760.

The previous prime is 522278117. The next prime is 522278149. The reversal of 522278142 is 241872225.

It is a super-2 number, since 2×522278142² = 545548915221944328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522278149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1403788 + ... + 1404159.

It is an arithmetic number, because the mean of its divisors is an integer number (67390752).

Almost surely, 2^522278142 is an apocalyptic number.

522278142 is an abundant number, since it is smaller than the sum of its proper divisors (555973890).

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

522278142 is a wasteful number, since it uses less digits than its factorization.

522278142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2807983.

The product of its digits is 17920, while the sum is 33.

The square root of 522278142 is about 22853.4054792716. The cubic root of 522278142 is about 805.3177722583.

The spelling of 522278142 in words is "five hundred twenty-two million, two hundred seventy-eight thousand, one hundred forty-two".