20384901 has 12 divisors (see below), whose sum is σ = 29484000. Its totient is φ = 13571880.

The previous prime is 20384899. The next prime is 20384909. The reversal of 20384901 is 10948302.

It is not a de Polignac number, because 20384901 - 2¹ = 20384899 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20384909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12736 + ... + 14246.

It is an arithmetic number, because the mean of its divisors is an integer number (2457000).

Almost surely, 2^20384901 is an apocalyptic number.

It is an amenable number.

20384901 is a deficient number, since it is larger than the sum of its proper divisors (9099099).

20384901 is a wasteful number, since it uses less digits than its factorization.

20384901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3016 (or 3013 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 20384901 is about 4514.9641194588. The cubic root of 20384901 is about 273.1720125145.

The spelling of 20384901 in words is "twenty million, three hundred eighty-four thousand, nine hundred one".