20001308 has 12 divisors (see below), whose sum is σ = 35127960. Its totient is φ = 9964752.

The previous prime is 20001307. The next prime is 20001341. The reversal of 20001308 is 80310002.

It is a junction number, because it is equal to n+sod(n) for n = 20001292 and 20001301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001301) 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, 7703 + ... + 9966.

It is an arithmetic number, because the mean of its divisors is an integer number (2927330).

Almost surely, 2^20001308 is an apocalyptic number.

It is an amenable number.

20001308 is a deficient number, since it is larger than the sum of its proper divisors (15126652).

20001308 is a wasteful number, since it uses less digits than its factorization.

20001308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17956 (or 17954 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 20001308 is about 4472.2821914544. The cubic root of 20001308 is about 271.4476789609.

The spelling of 20001308 in words is "twenty million, one thousand, three hundred eight".