20144335 has 8 divisors (see below), whose sum is σ = 24569856. Its totient is φ = 15851040.

The previous prime is 20144321. The next prime is 20144347. The reversal of 20144335 is 53344102.

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

It is not a de Polignac number, because 20144335 - 2¹⁹ = 19620047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32719 + ... + 33328.

It is an arithmetic number, because the mean of its divisors is an integer number (3071232).

Almost surely, 2^20144335 is an apocalyptic number.

20144335 is a deficient number, since it is larger than the sum of its proper divisors (4425521).

20144335 is an equidigital number, since it uses as much as digits as its factorization.

20144335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66113.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 20144335 is about 4488.2440887278. The cubic root of 20144335 is about 272.0931729173.

Adding to 20144335 its reverse (53344102), we get a palindrome (73488437).

The spelling of 20144335 in words is "twenty million, one hundred forty-four thousand, three hundred thirty-five".