20722076 has 12 divisors (see below), whose sum is σ = 36356880. Its totient is φ = 10334400.

The previous prime is 20722073. The next prime is 20722123. The reversal of 20722076 is 67022702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20722073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4856 + ... + 8063.

It is an arithmetic number, because the mean of its divisors is an integer number (3029740).

Almost surely, 2^20722076 is an apocalyptic number.

It is an amenable number.

20722076 is a deficient number, since it is larger than the sum of its proper divisors (15634804).

20722076 is a wasteful number, since it uses less digits than its factorization.

20722076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13324 (or 13322 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 20722076 is about 4552.1507004931. The cubic root of 20722076 is about 274.6699113838.

Adding to 20722076 its reverse (67022702), we get a palindrome (87744778).

The spelling of 20722076 in words is "twenty million, seven hundred twenty-two thousand, seventy-six".