20183928 has 32 divisors (see below), whose sum is σ = 53116800. Its totient is φ = 6373728.

The previous prime is 20183873. The next prime is 20183929. The reversal of 20183928 is 82938102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20183929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21676 + ... + 22587.

It is an arithmetic number, because the mean of its divisors is an integer number (1659900).

Almost surely, 2^20183928 is an apocalyptic number.

It is an amenable number.

20183928 is an abundant number, since it is smaller than the sum of its proper divisors (32932872).

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

20183928 is a wasteful number, since it uses less digits than its factorization.

20183928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44291 (or 44287 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 20183928 is about 4492.6526685245. The cubic root of 20183928 is about 272.2713195230.

The spelling of 20183928 in words is "twenty million, one hundred eighty-three thousand, nine hundred twenty-eight".