20866348 has 12 divisors (see below), whose sum is σ = 37694272. Its totient is φ = 10096560.

The previous prime is 20866343. The next prime is 20866357. The reversal of 20866348 is 84366802.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (20866343) 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, 84015 + ... + 84262.

Almost surely, 2^20866348 is an apocalyptic number.

It is an amenable number.

20866348 is a deficient number, since it is larger than the sum of its proper divisors (16827924).

20866348 is a wasteful number, since it uses less digits than its factorization.

20866348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168312 (or 168310 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 20866348 is about 4567.9697897425. The cubic root of 20866348 is about 275.3058767335.

The spelling of 20866348 in words is "twenty million, eight hundred sixty-six thousand, three hundred forty-eight".