528452040 has 64 divisors (see below), whose sum is σ = 1636508160. Its totient is φ = 136373760.

The previous prime is 528452039. The next prime is 528452047. The reversal of 528452040 is 40254825.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 528451989 and 528452007.

It is not an unprimeable number, because it can be changed into a prime (528452047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67309 + ... + 74748.

It is an arithmetic number, because the mean of its divisors is an integer number (25570440).

Almost surely, 2^528452040 is an apocalyptic number.

It is an amenable number.

528452040 is an abundant number, since it is smaller than the sum of its proper divisors (1108056120).

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

528452040 is a wasteful number, since it uses less digits than its factorization.

528452040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142102 (or 142098 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

The square root of 528452040 is about 22988.0847397081. The cubic root of 528452040 is about 808.4785951669.

The spelling of 528452040 in words is "five hundred twenty-eight million, four hundred fifty-two thousand, forty".