20144234 has 16 divisors (see below), whose sum is σ = 34027776. Its totient is φ = 8860800.

The previous prime is 20144231. The next prime is 20144239. The reversal of 20144234 is 43244102.

It is not an unprimeable number, because it can be changed into a prime (20144231) 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, 14087 + ... + 15450.

It is an arithmetic number, because the mean of its divisors is an integer number (2126736).

Almost surely, 2^20144234 is an apocalyptic number.

20144234 is a deficient number, since it is larger than the sum of its proper divisors (13883542).

20144234 is a wasteful number, since it uses less digits than its factorization.

20144234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29581.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 20144234 is about 4488.2328370975. The cubic root of 20144234 is about 272.0927181748.

Adding to 20144234 its reverse (43244102), we get a palindrome (63388336).

The spelling of 20144234 in words is "twenty million, one hundred forty-four thousand, two hundred thirty-four".