528421312 has 56 divisors (see below), whose sum is σ = 1114755200. Its totient is φ = 247815936.

The previous prime is 528421307. The next prime is 528421321. The reversal of 528421312 is 213124825.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123139 + ... + 127357.

Almost surely, 2^528421312 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 528421312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (557377600).

528421312 is an abundant number, since it is smaller than the sum of its proper divisors (586333888).

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

528421312 is a wasteful number, since it uses less digits than its factorization.

528421312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4353 (or 4343 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

The square root of 528421312 is about 22987.4163837522. The cubic root of 528421312 is about 808.4629246109.

The spelling of 528421312 in words is "five hundred twenty-eight million, four hundred twenty-one thousand, three hundred twelve".