20715060 has 48 divisors (see below), whose sum is σ = 58879296. Its totient is φ = 5440512.

The previous prime is 20715059. The next prime is 20715067. The reversal of 20715060 is 6051702.

It is a super-2 number, since 2×20715060² = 858227421607200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20715067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1444 + ... + 6596.

It is an arithmetic number, because the mean of its divisors is an integer number (1226652).

Almost surely, 2^20715060 is an apocalyptic number.

20715060 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 20715060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29439648).

20715060 is an abundant number, since it is smaller than the sum of its proper divisors (38164236).

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

20715060 is a wasteful number, since it uses less digits than its factorization.

20715060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5232 (or 5230 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 20715060 is about 4551.3800105023. The cubic root of 20715060 is about 274.6389089941.

Adding to 20715060 its reverse (6051702), we get a palindrome (26766762).

The spelling of 20715060 in words is "twenty million, seven hundred fifteen thousand, sixty".