20133424 has 20 divisors (see below), whose sum is σ = 40354560. Its totient is φ = 9719360.

The previous prime is 20133413. The next prime is 20133431. The reversal of 20133424 is 42433102.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 21232 + ... + 22159.

It is an arithmetic number, because the mean of its divisors is an integer number (2017728).

Almost surely, 2^20133424 is an apocalyptic number.

It is an amenable number.

20133424 is an abundant number, since it is smaller than the sum of its proper divisors (20221136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20133424 is a wasteful number, since it uses less digits than its factorization.

20133424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43428 (or 43422 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 20133424 is about 4487.0284153324. The cubic root of 20133424 is about 272.0440384289.

Adding to 20133424 its reverse (42433102), we get a palindrome (62566526).

The spelling of 20133424 in words is "twenty million, one hundred thirty-three thousand, four hundred twenty-four".