20788268 has 6 divisors (see below), whose sum is σ = 36379476. Its totient is φ = 10394132.

The previous prime is 20788267. The next prime is 20788301. The reversal of 20788268 is 86288702.

It is not an unprimeable number, because it can be changed into a prime (20788267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2598530 + ... + 2598537.

It is an arithmetic number, because the mean of its divisors is an integer number (6063246).

Almost surely, 2^20788268 is an apocalyptic number.

It is an amenable number.

20788268 is a deficient number, since it is larger than the sum of its proper divisors (15591208).

20788268 is a wasteful number, since it uses less digits than its factorization.

20788268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5197071 (or 5197069 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 41.

The square root of 20788268 is about 4559.4153133927. The cubic root of 20788268 is about 274.9620575751.

The spelling of 20788268 in words is "twenty million, seven hundred eighty-eight thousand, two hundred sixty-eight".