20716276 has 24 divisors (see below), whose sum is σ = 41597696. Its totient is φ = 8843040.

The previous prime is 20716273. The next prime is 20716279. The reversal of 20716276 is 67261702.

It is an interprime number because it is at equal distance from previous prime (20716273) and next prime (20716279).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20716273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6421 + ... + 9091.

Almost surely, 2^20716276 is an apocalyptic number.

It is an amenable number.

20716276 is an abundant number, since it is smaller than the sum of its proper divisors (20881420).

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

20716276 is a wasteful number, since it uses less digits than its factorization.

20716276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2959 (or 2957 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 20716276 is about 4551.5135943991. The cubic root of 20716276 is about 274.6442827718.

Adding to 20716276 its reverse (67261702), we get a palindrome (87977978).

The spelling of 20716276 in words is "twenty million, seven hundred sixteen thousand, two hundred seventy-six".