20134884 has 108 divisors (see below), whose sum is σ = 60284112. Its totient is φ = 5211360.

The previous prime is 20134883. The next prime is 20134897. The reversal of 20134884 is 48843102.

It is not an unprimeable number, because it can be changed into a prime (20134883) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 71007 + ... + 71289.

Almost surely, 2^20134884 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20134884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30142056).

20134884 is an abundant number, since it is smaller than the sum of its proper divisors (40149228).

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

20134884 is a wasteful number, since it uses less digits than its factorization.

20134884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326 (or 306 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 20134884 is about 4487.1911035747. The cubic root of 20134884 is about 272.0506141393.

Adding to 20134884 its reverse (48843102), we get a palindrome (68977986).

The spelling of 20134884 in words is "twenty million, one hundred thirty-four thousand, eight hundred eighty-four".