20608272 has 30 divisors (see below), whose sum is σ = 57674942. Its totient is φ = 6869376.

The previous prime is 20608271. The next prime is 20608277. The reversal of 20608272 is 27280602.

It can be written as a sum of positive squares in only one way, i.e., 10342656 + 10265616 = 3216^2 + 3204^2 .

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (20608271) 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 5 ways as a sum of consecutive naturals, for example, 71413 + ... + 71700.

Almost surely, 2^20608272 is an apocalyptic number.

It is an amenable number.

20608272 is an abundant number, since it is smaller than the sum of its proper divisors (37066670).

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

20608272 is a wasteful number, since it uses less digits than its factorization.

20608272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143127 (or 143118 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 20608272 is about 4539.6334653802. The cubic root of 20608272 is about 274.1661662803.

Adding to 20608272 its reverse (27280602), we get a palindrome (47888874).

It can be divided in two parts, 206082 and 72, that multiplied together give a square (14837904 = 3852²).

The spelling of 20608272 in words is "twenty million, six hundred eight thousand, two hundred seventy-two".