20093128 has 16 divisors (see below), whose sum is σ = 41099760. Its totient is φ = 9133200.

The previous prime is 20093123. The next prime is 20093131. The reversal of 20093128 is 82139002.

It is not an unprimeable number, because it can be changed into a prime (20093123) 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, 114078 + ... + 114253.

It is an arithmetic number, because the mean of its divisors is an integer number (2568735).

Almost surely, 2^20093128 is an apocalyptic number.

It is an amenable number.

20093128 is an abundant number, since it is smaller than the sum of its proper divisors (21006632).

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

20093128 is a wasteful number, since it uses less digits than its factorization.

20093128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228348 (or 228344 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 20093128 is about 4482.5358894269. The cubic root of 20093128 is about 271.8624232170.

The spelling of 20093128 in words is "twenty million, ninety-three thousand, one hundred twenty-eight".