20360928 has 96 divisors (see below), whose sum is σ = 62657280. Its totient is φ = 5667840.

The previous prime is 20360909. The next prime is 20360933. The reversal of 20360928 is 82906302.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 20360895 and 20360904.

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 15 ways as a sum of consecutive naturals, for example, 27183 + ... + 27921.

It is an arithmetic number, because the mean of its divisors is an integer number (652680).

Almost surely, 2^20360928 is an apocalyptic number.

20360928 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20360928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31328640).

20360928 is an abundant number, since it is smaller than the sum of its proper divisors (42296352).

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

20360928 is a wasteful number, since it uses less digits than its factorization.

20360928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800 (or 792 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 20360928 is about 4512.3085000917. The cubic root of 20360928 is about 273.0648854881.

The spelling of 20360928 in words is "twenty million, three hundred sixty thousand, nine hundred twenty-eight".