528740320 has 24 divisors (see below), whose sum is σ = 1249149384. Its totient is φ = 211496064.

The previous prime is 528740299. The next prime is 528740321. The reversal of 528740320 is 23047825.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (528740321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1652154 + ... + 1652473.

It is an arithmetic number, because the mean of its divisors is an integer number (52047891).

Almost surely, 2^528740320 is an apocalyptic number.

It is an amenable number.

528740320 is an abundant number, since it is smaller than the sum of its proper divisors (720409064).

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

528740320 is a wasteful number, since it uses less digits than its factorization.

528740320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3304642 (or 3304634 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 528740320 is about 22994.3540896456. The cubic root of 528740320 is about 808.6255816000.

The spelling of 528740320 in words is "five hundred twenty-eight million, seven hundred forty thousand, three hundred twenty".