528166642 has 8 divisors (see below), whose sum is σ = 838852956. Its totient is φ = 248548992.

The previous prime is 528166637. The next prime is 528166741. The reversal of 528166642 is 246661825.

It can be written as a sum of positive squares in 2 ways, for example, as 515698681 + 12467961 = 22709^2 + 3531^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 528166595 and 528166604.

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, 7767123 + ... + 7767190.

Almost surely, 2^528166642 is an apocalyptic number.

528166642 is a deficient number, since it is larger than the sum of its proper divisors (310686314).

528166642 is a wasteful number, since it uses less digits than its factorization.

528166642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15534332.

The product of its digits is 138240, while the sum is 40.

The square root of 528166642 is about 22981.8763811835. The cubic root of 528166642 is about 808.3330255239. Note that the first 3 decimals are identical.

The spelling of 528166642 in words is "five hundred twenty-eight million, one hundred sixty-six thousand, six hundred forty-two".