528072438 has 16 divisors (see below), whose sum is σ = 1056968640. Its totient is φ = 175886856.

The previous prime is 528072427. The next prime is 528072439. The reversal of 528072438 is 834270825.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 528072396 and 528072405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (528072439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25828 + ... + 41511.

It is an arithmetic number, because the mean of its divisors is an integer number (66060540).

Almost surely, 2^528072438 is an apocalyptic number.

528072438 is an abundant number, since it is smaller than the sum of its proper divisors (528896202).

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

528072438 is a wasteful number, since it uses less digits than its factorization.

528072438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68651.

The product of its (nonzero) digits is 107520, while the sum is 39.

The square root of 528072438 is about 22979.8267617491. The cubic root of 528072438 is about 808.2849644727.

The spelling of 528072438 in words is "five hundred twenty-eight million, seventy-two thousand, four hundred thirty-eight".