20708160 has 224 divisors, whose sum is σ = 75053952. Its totient is φ = 4792320.

The previous prime is 20708141. The next prime is 20708179. The reversal of 20708160 is 6180702.

It is an interprime number because it is at equal distance from previous prime (20708141) and next prime (20708179).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 20708160.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 390694 + ... + 390746.

Almost surely, 2^20708160 is an apocalyptic number.

20708160 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 20708160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37526976).

20708160 is an abundant number, since it is smaller than the sum of its proper divisors (54345792).

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

20708160 is a wasteful number, since it uses less digits than its factorization.

20708160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121 (or 111 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 20708160 is about 4550.6219355161. The cubic root of 20708160 is about 274.6084123584.

Adding to 20708160 its reverse (6180702), we get a palindrome (26888862).

The spelling of 20708160 in words is "twenty million, seven hundred eight thousand, one hundred sixty".