20334401 has 8 divisors (see below), whose sum is σ = 21049224. Its totient is φ = 19630080.

The previous prime is 20334383. The next prime is 20334403. The reversal of 20334401 is 10443302.

20334401 = 409² + 410² + ... + 505².

It can be written as a sum of positive squares in 4 ways, for example, as 1324801 + 19009600 = 1151^2 + 4360^2 .

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 20334401 - 2⁶ = 20334337 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20334401.

It is not an unprimeable number, because it can be changed into a prime (20334403) 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, 1421 + ... + 6533.

It is an arithmetic number, because the mean of its divisors is an integer number (2631153).

Almost surely, 2^20334401 is an apocalyptic number.

It is an amenable number.

20334401 is a deficient number, since it is larger than the sum of its proper divisors (714823).

20334401 is an equidigital number, since it uses as much as digits as its factorization.

20334401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5251.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 20334401 is about 4509.3681375554. The cubic root of 20334401 is about 272.9462474732.

Adding to 20334401 its reverse (10443302), we get a palindrome (30777703).

The spelling of 20334401 in words is "twenty million, three hundred thirty-four thousand, four hundred one".