20528324 has 12 divisors (see below), whose sum is σ = 37083648. Its totient is φ = 9933000.

The previous prime is 20528311. The next prime is 20528327. The reversal of 20528324 is 42382502.

It is a junction number, because it is equal to n+sod(n) for n = 20528293 and 20528302.

It is not an unprimeable number, because it can be changed into a prime (20528327) 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, 82652 + ... + 82899.

It is an arithmetic number, because the mean of its divisors is an integer number (3090304).

Almost surely, 2^20528324 is an apocalyptic number.

It is an amenable number.

20528324 is a deficient number, since it is larger than the sum of its proper divisors (16555324).

20528324 is a wasteful number, since it uses less digits than its factorization.

20528324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165586 (or 165584 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 20528324 is about 4530.8193519495. The cubic root of 20528324 is about 273.8111722235.

The spelling of 20528324 in words is "twenty million, five hundred twenty-eight thousand, three hundred twenty-four".