528442 has 4 divisors (see below), whose sum is σ = 792666. Its totient is φ = 264220.

The previous prime is 528433. The next prime is 528469. The reversal of 528442 is 244825.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 269361 + 259081 = 519^2 + 509^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132109 + ... + 132112.

2⁵²⁸⁴⁴² is an apocalyptic number.

528442 is a deficient number, since it is larger than the sum of its proper divisors (264224).

528442 is a wasteful number, since it uses less digits than its factorization.

528442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264223.

The product of its digits is 2560, while the sum is 25.

The square root of 528442 is about 726.9401625994. The cubic root of 528442 is about 80.8473475070.

The spelling of 528442 in words is "five hundred twenty-eight thousand, four hundred forty-two".