20741716 has 6 divisors (see below), whose sum is σ = 36298010. Its totient is φ = 10370856.

The previous prime is 20741713. The next prime is 20741723. The reversal of 20741716 is 61714702.

It can be written as a sum of positive squares in only one way, i.e., 15634116 + 5107600 = 3954^2 + 2260^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20741713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2592711 + ... + 2592718.

Almost surely, 2^20741716 is an apocalyptic number.

It is an amenable number.

20741716 is a deficient number, since it is larger than the sum of its proper divisors (15556294).

20741716 is a wasteful number, since it uses less digits than its factorization.

20741716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5185433 (or 5185431 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 20741716 is about 4554.3074116708. The cubic root of 20741716 is about 274.7566596691.

The spelling of 20741716 in words is "twenty million, seven hundred forty-one thousand, seven hundred sixteen".