528540424 has 8 divisors (see below), whose sum is σ = 991013310. Its totient is φ = 264270208.

The previous prime is 528540407. The next prime is 528540451. The reversal of 528540424 is 424045825.

It can be written as a sum of positive squares in only one way, i.e., 528540100 + 324 = 22990^2 + 18^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×528540424³ (a number of 27 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 528540424.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33033769 + ... + 33033784.

Almost surely, 2^528540424 is an apocalyptic number.

It is an amenable number.

528540424 is a deficient number, since it is larger than the sum of its proper divisors (462472886).

528540424 is a wasteful number, since it uses less digits than its factorization.

528540424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66067559 (or 66067555 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 34.

The square root of 528540424 is about 22990.0070465409. The cubic root of 528540424 is about 808.5236655381.

The spelling of 528540424 in words is "five hundred twenty-eight million, five hundred forty thousand, four hundred twenty-four".