528040140 has 48 divisors (see below), whose sum is σ = 1479619680. Its totient is φ = 140705280.

The previous prime is 528040133. The next prime is 528040157. The reversal of 528040140 is 41040825.

It is a self number, because there is not a number n which added to its sum of digits gives 528040140.

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, 109296 + ... + 114024.

It is an arithmetic number, because the mean of its divisors is an integer number (30825410).

Almost surely, 2^528040140 is an apocalyptic number.

It is an amenable number.

528040140 is an abundant number, since it is smaller than the sum of its proper divisors (951579540).

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

528040140 is a wasteful number, since it uses less digits than its factorization.

528040140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6602 (or 6600 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 528040140 is about 22979.1240041913. The cubic root of 528040140 is about 808.2684853446.

Adding to 528040140 its reverse (41040825), we get a palindrome (569080965).

The spelling of 528040140 in words is "five hundred twenty-eight million, forty thousand, one hundred forty".