528431506 has 8 divisors (see below), whose sum is σ = 798888960. Its totient is φ = 262135188.

The previous prime is 528431489. The next prime is 528431507. The reversal of 528431506 is 605134825.

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

It is not an unprimeable number, because it can be changed into a prime (528431507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1039966 + ... + 1040473.

It is an arithmetic number, because the mean of its divisors is an integer number (99861120).

Almost surely, 2^528431506 is an apocalyptic number.

528431506 is a deficient number, since it is larger than the sum of its proper divisors (270457454).

528431506 is a wasteful number, since it uses less digits than its factorization.

528431506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2080568.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 528431506 is about 22987.6381126900. The cubic root of 528431506 is about 808.4681233781.

The spelling of 528431506 in words is "five hundred twenty-eight million, four hundred thirty-one thousand, five hundred six".