20304401 has 8 divisors (see below), whose sum is σ = 21947520. Its totient is φ = 18672912.

The previous prime is 20304313. The next prime is 20304413. The reversal of 20304401 is 10440302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20304401 - 2¹⁴ = 20288017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20304461) 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 7 ways as a sum of consecutive naturals, for example, 920 + ... + 6438.

It is an arithmetic number, because the mean of its divisors is an integer number (2743440).

Almost surely, 2^20304401 is an apocalyptic number.

It is an amenable number.

20304401 is a deficient number, since it is larger than the sum of its proper divisors (1643119).

20304401 is a wasteful number, since it uses less digits than its factorization.

20304401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5815.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 20304401 is about 4506.0405013715. The cubic root of 20304401 is about 272.8119525970.

Adding to 20304401 its reverse (10440302), we get a palindrome (30744703).

The spelling of 20304401 in words is "twenty million, three hundred four thousand, four hundred one".