20006484 has 48 divisors (see below), whose sum is σ = 49968576. Its totient is φ = 6208000.

The previous prime is 20006431. The next prime is 20006489. The reversal of 20006484 is 48460002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20006489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20119 + ... + 21089.

It is an arithmetic number, because the mean of its divisors is an integer number (1041012).

Almost surely, 2^20006484 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 20006484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24984288).

20006484 is an abundant number, since it is smaller than the sum of its proper divisors (29962092).

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

20006484 is a wasteful number, since it uses less digits than its factorization.

20006484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096 (or 1094 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 20006484 is about 4472.8608294916. The cubic root of 20006484 is about 271.4710922964.

Adding to 20006484 its reverse (48460002), we get a palindrome (68466486).

The spelling of 20006484 in words is "twenty million, six thousand, four hundred eighty-four".