528274242 has 12 divisors (see below), whose sum is σ = 1144594230. Its totient is φ = 176091408.

The previous prime is 528274223. The next prime is 528274247. The reversal of 528274242 is 242472825.

It can be written as a sum of positive squares in only one way, i.e., 493239681 + 35034561 = 22209^2 + 5919^2 .

It is a junction number, because it is equal to n+sod(n) for n = 528274197 and 528274206.

It is not an unprimeable number, because it can be changed into a prime (528274247) 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 5 ways as a sum of consecutive naturals, for example, 14674267 + ... + 14674302.

Almost surely, 2^528274242 is an apocalyptic number.

528274242 is an abundant number, since it is smaller than the sum of its proper divisors (616319988).

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

528274242 is a wasteful number, since it uses less digits than its factorization.

528274242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29348577 (or 29348574 counting only the distinct ones).

The product of its digits is 71680, while the sum is 36.

The square root of 528274242 is about 22984.2172370520. The cubic root of 528274242 is about 808.3879139631.

It can be divided in two parts, 5282 and 74242, that added together give a square (79524 = 282²).

The spelling of 528274242 in words is "five hundred twenty-eight million, two hundred seventy-four thousand, two hundred forty-two".