20908652 has 12 divisors (see below), whose sum is σ = 37852080. Its totient is φ = 10093776.

The previous prime is 20908651. The next prime is 20908669. The reversal of 20908652 is 25680902.

It is not an unprimeable number, because it can be changed into a prime (20908651) 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 3 ways as a sum of consecutive naturals, for example, 90008 + ... + 90239.

It is an arithmetic number, because the mean of its divisors is an integer number (3154340).

Almost surely, 2^20908652 is an apocalyptic number.

It is an amenable number.

20908652 is a deficient number, since it is larger than the sum of its proper divisors (16943428).

20908652 is a wasteful number, since it uses less digits than its factorization.

20908652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180280 (or 180278 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 20908652 is about 4572.5979486502. The cubic root of 20908652 is about 275.4918009468.

The spelling of 20908652 in words is "twenty million, nine hundred eight thousand, six hundred fifty-two".