20001368 has 8 divisors (see below), whose sum is σ = 37502580. Its totient is φ = 10000680.

The previous prime is 20001361. The next prime is 20001389. The reversal of 20001368 is 86310002.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1250078 + ... + 1250093.

Almost surely, 2^20001368 is an apocalyptic number.

It is an amenable number.

20001368 is a deficient number, since it is larger than the sum of its proper divisors (17501212).

20001368 is a wasteful number, since it uses less digits than its factorization.

20001368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2500177 (or 2500173 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 20001368 is about 4472.2888994339. The cubic root of 20001368 is about 271.4479503906.

The spelling of 20001368 in words is "twenty million, one thousand, three hundred sixty-eight".