20683112 has 8 divisors (see below), whose sum is σ = 38780850. Its totient is φ = 10341552.

The previous prime is 20683063. The next prime is 20683123. The reversal of 20683112 is 21138602.

It can be written as a sum of positive squares in only one way, i.e., 20376196 + 306916 = 4514^2 + 554^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×20683112² = 855582244009088, which contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1292687 + ... + 1292702.

Almost surely, 2^20683112 is an apocalyptic number.

It is an amenable number.

20683112 is a deficient number, since it is larger than the sum of its proper divisors (18097738).

20683112 is a wasteful number, since it uses less digits than its factorization.

20683112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2585395 (or 2585391 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 20683112 is about 4547.8689514981. The cubic root of 20683112 is about 274.4976481850.

The spelling of 20683112 in words is "twenty million, six hundred eighty-three thousand, one hundred twelve".