20532028 has 12 divisors (see below), whose sum is σ = 39197592. Its totient is φ = 9332720.

The previous prime is 20532011. The next prime is 20532037. The reversal of 20532028 is 82023502.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233275 + ... + 233362.

It is an arithmetic number, because the mean of its divisors is an integer number (3266466).

Almost surely, 2^20532028 is an apocalyptic number.

It is an amenable number.

20532028 is a deficient number, since it is larger than the sum of its proper divisors (18665564).

20532028 is a wasteful number, since it uses less digits than its factorization.

20532028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466652 (or 466650 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 20532028 is about 4531.2280896022. The cubic root of 20532028 is about 273.8276394810.

The spelling of 20532028 in words is "twenty million, five hundred thirty-two thousand, twenty-eight".