528933240 has 448 divisors, whose sum is σ = 2082296160. Its totient is φ = 119439360.

The previous prime is 528933221. The next prime is 528933271. The reversal of 528933240 is 42339825.

528933240 is a `hidden beast` number, since 5 + 289 + 332 + 40 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 528933195 and 528933204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 5452872 + ... + 5452968.

Almost surely, 2^528933240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 528933240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1041148080).

528933240 is an abundant number, since it is smaller than the sum of its proper divisors (1553362920).

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

528933240 is a wasteful number, since it uses less digits than its factorization.

528933240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154 (or 135 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 528933240 is about 22998.5486498605. The cubic root of 528933240 is about 808.7239166251.

The spelling of 528933240 in words is "five hundred twenty-eight million, nine hundred thirty-three thousand, two hundred forty".