20934108 has 72 divisors (see below), whose sum is σ = 58430736. Its totient is φ = 6278400.

The previous prime is 20934107. The next prime is 20934113. The reversal of 20934108 is 80143902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20934107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18643 + ... + 19733.

It is an arithmetic number, because the mean of its divisors is an integer number (811538).

Almost surely, 2^20934108 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 20934108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29215368).

20934108 is an abundant number, since it is smaller than the sum of its proper divisors (37496628).

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

20934108 is a wasteful number, since it uses less digits than its factorization.

20934108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1155 (or 1150 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 20934108 is about 4575.3806399031. The cubic root of 20934108 is about 275.6035581142.

The spelling of 20934108 in words is "twenty million, nine hundred thirty-four thousand, one hundred eight".