528239946 has 64 divisors (see below), whose sum is σ = 1214269056. Its totient is φ = 151756800.

The previous prime is 528239939. The next prime is 528239983. The reversal of 528239946 is 649932825.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 528239895 and 528239904.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 172186 + ... + 175226.

It is an arithmetic number, because the mean of its divisors is an integer number (18972954).

Almost surely, 2^528239946 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 528239946, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (607134528).

528239946 is an abundant number, since it is smaller than the sum of its proper divisors (686029110).

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

528239946 is a wasteful number, since it uses less digits than its factorization.

528239946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3207.

The product of its digits is 933120, while the sum is 48.

The square root of 528239946 is about 22983.4711477618. The cubic root of 528239946 is about 808.3704198475.

The spelling of 528239946 in words is "five hundred twenty-eight million, two hundred thirty-nine thousand, nine hundred forty-six".