528664980 has 48 divisors (see below), whose sum is σ = 1567339200. Its totient is φ = 132684288.

The previous prime is 528664973. The next prime is 528664993. The reversal of 528664980 is 89466825.

It is a happy number.

It is a super-2 number, since 2×528664980² = 558973322156800800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 258130 + ... + 260169.

It is an arithmetic number, because the mean of its divisors is an integer number (32652900).

Almost surely, 2^528664980 is an apocalyptic number.

It is an amenable number.

528664980 is an abundant number, since it is smaller than the sum of its proper divisors (1038674220).

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

528664980 is a wasteful number, since it uses less digits than its factorization.

528664980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518328 (or 518326 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 48.

The square root of 528664980 is about 22992.7158030538. The cubic root of 528664980 is about 808.5871728621.

The spelling of 528664980 in words is "five hundred twenty-eight million, six hundred sixty-four thousand, nine hundred eighty".