528997456 has 20 divisors (see below), whose sum is σ = 1103773972. Its totient is φ = 244152576.

The previous prime is 528997453. The next prime is 528997463. The reversal of 528997456 is 654799825.

It can be written as a sum of positive squares in 2 ways, for example, as 112021056 + 416976400 = 10584^2 + 20420^2 .

It is a junction number, because it is equal to n+sod(n) for n = 528997397 and 528997406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (528997451) 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, 1271421 + ... + 1271836.

Almost surely, 2^528997456 is an apocalyptic number.

It is an amenable number.

528997456 is an abundant number, since it is smaller than the sum of its proper divisors (574776516).

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

528997456 is a wasteful number, since it uses less digits than its factorization.

528997456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2543278 (or 2543272 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 55.

The square root of 528997456 is about 22999.9446955857. The cubic root of 528997456 is about 808.7566434481.

The spelling of 528997456 in words is "five hundred twenty-eight million, nine hundred ninety-seven thousand, four hundred fifty-six".