20540112 has 20 divisors (see below), whose sum is σ = 53062080. Its totient is φ = 6846688.

The previous prime is 20540101. The next prime is 20540129. The reversal of 20540112 is 21104502.

It is a junction number, because it is equal to n+sod(n) for n = 20540091 and 20540100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213912 + ... + 214007.

It is an arithmetic number, because the mean of its divisors is an integer number (2653104).

Almost surely, 2^20540112 is an apocalyptic number.

It is an amenable number.

20540112 is an abundant number, since it is smaller than the sum of its proper divisors (32521968).

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

20540112 is a wasteful number, since it uses less digits than its factorization.

20540112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427930 (or 427924 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 20540112 is about 4532.1200337149. The cubic root of 20540112 is about 273.8635724825.

Adding to 20540112 its reverse (21104502), we get a palindrome (41644614).

The spelling of 20540112 in words is "twenty million, five hundred forty thousand, one hundred twelve".