20715092 has 12 divisors (see below), whose sum is σ = 38159520. Its totient is φ = 9812376.

The previous prime is 20715091. The next prime is 20715113. The reversal of 20715092 is 29051702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20715091) 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 3 ways as a sum of consecutive naturals, for example, 136208 + ... + 136359.

It is an arithmetic number, because the mean of its divisors is an integer number (3179960).

Almost surely, 2^20715092 is an apocalyptic number.

It is an amenable number.

20715092 is a deficient number, since it is larger than the sum of its proper divisors (17444428).

20715092 is a wasteful number, since it uses less digits than its factorization.

20715092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272590 (or 272588 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 20715092 is about 4551.3835259182. The cubic root of 20715092 is about 274.6390504120.

Adding to 20715092 its reverse (29051702), we get a palindrome (49766794).

The spelling of 20715092 in words is "twenty million, seven hundred fifteen thousand, ninety-two".