20143433 has 8 divisors (see below), whose sum is σ = 20376576. Its totient is φ = 19912000.

The previous prime is 20143427. The next prime is 20143441. The reversal of 20143433 is 33434102.

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 20143433 - 2²⁰ = 19094857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20143033) by changing a digit.

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, 50033 + ... + 50433.

It is an arithmetic number, because the mean of its divisors is an integer number (2547072).

Almost surely, 2^20143433 is an apocalyptic number.

It is an amenable number.

20143433 is a deficient number, since it is larger than the sum of its proper divisors (233143).

20143433 is a wasteful number, since it uses less digits than its factorization.

20143433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 20143433 is about 4488.1436028719. The cubic root of 20143433 is about 272.0891116977.

Adding to 20143433 its reverse (33434102), we get a palindrome (53577535).

It can be divided in two parts, 201 and 43433, that added together give a palindrome (43634).

The spelling of 20143433 in words is "twenty million, one hundred forty-three thousand, four hundred thirty-three".