20433133 has 8 divisors (see below), whose sum is σ = 24725952. Its totient is φ = 16483776.

The previous prime is 20433097. The next prime is 20433137. The reversal of 20433133 is 33133402.

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 20433133 - 2¹³ = 20424941 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 20433133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20433137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85735 + ... + 85972.

It is an arithmetic number, because the mean of its divisors is an integer number (3090744).

Almost surely, 2^20433133 is an apocalyptic number.

It is an amenable number.

20433133 is a deficient number, since it is larger than the sum of its proper divisors (4292819).

20433133 is a wasteful number, since it uses less digits than its factorization.

20433133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171731.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 20433133 is about 4520.3023128990. The cubic root of 20433133 is about 273.3872903923.

Adding to 20433133 its reverse (33133402), we get a palindrome (53566535).

The spelling of 20433133 in words is "twenty million, four hundred thirty-three thousand, one hundred thirty-three".