20193968 has 20 divisors (see below), whose sum is σ = 39379920. Its totient is φ = 10031424.

The previous prime is 20193967. The next prime is 20193991. The reversal of 20193968 is 86939102.

It is not an unprimeable number, because it can be changed into a prime (20193967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1508 + ... + 6531.

It is an arithmetic number, because the mean of its divisors is an integer number (1968996).

Almost surely, 2^20193968 is an apocalyptic number.

It is an amenable number.

20193968 is a deficient number, since it is larger than the sum of its proper divisors (19185952).

20193968 is a wasteful number, since it uses less digits than its factorization.

20193968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8204 (or 8198 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 20193968 is about 4493.7699095526. The cubic root of 20193968 is about 272.3164569366.

The spelling of 20193968 in words is "twenty million, one hundred ninety-three thousand, nine hundred sixty-eight".