20308001 has 8 divisors (see below), whose sum is σ = 23683200. Its totient is φ = 17406564.

The previous prime is 20307983. The next prime is 20308003. The reversal of 20308001 is 10080302.

It is not a de Polignac number, because 20308001 - 2¹⁰ = 20306977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20308003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29261 + ... + 29946.

It is an arithmetic number, because the mean of its divisors is an integer number (2960400).

Almost surely, 2^20308001 is an apocalyptic number.

It is an amenable number.

20308001 is a deficient number, since it is larger than the sum of its proper divisors (3375199).

20308001 is an frugal number, since it uses more digits than its factorization.

20308001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59228 (or 59214 counting only the distinct ones).

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

The square root of 20308001 is about 4506.4399474530. The cubic root of 20308001 is about 272.8280749637.

Adding to 20308001 its reverse (10080302), we get a palindrome (30388303).

The spelling of 20308001 in words is "twenty million, three hundred eight thousand, one".