20114540 has 48 divisors (see below), whose sum is σ = 45534720. Its totient is φ = 7439040.

The previous prime is 20114531. The next prime is 20114557. The reversal of 20114540 is 4541102.

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, 15725 + ... + 16955.

It is an arithmetic number, because the mean of its divisors is an integer number (948640).

Almost surely, 2^20114540 is an apocalyptic number.

20114540 is a gapful number since it is divisible by the number (20) 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 20114540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22767360).

20114540 is an abundant number, since it is smaller than the sum of its proper divisors (25420180).

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

20114540 is a wasteful number, since it uses less digits than its factorization.

20114540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302 (or 1300 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 20114540 is about 4484.9236336865. The cubic root of 20114540 is about 271.9589579078.

Adding to 20114540 its reverse (4541102), we get a palindrome (24655642).

It can be divided in two parts, 201 and 14540, that added together give a palindrome (14741).

The spelling of 20114540 in words is "twenty million, one hundred fourteen thousand, five hundred forty".