20342033 has 4 divisors (see below), whose sum is σ = 20360688. Its totient is φ = 20323380.

The previous prime is 20342029. The next prime is 20342039. The reversal of 20342033 is 33024302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20342033 - 2² = 20342029 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20342039) 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 3 ways as a sum of consecutive naturals, for example, 7583 + ... + 9908.

It is an arithmetic number, because the mean of its divisors is an integer number (5090172).

Almost surely, 2^20342033 is an apocalyptic number.

It is an amenable number.

20342033 is a deficient number, since it is larger than the sum of its proper divisors (18655).

20342033 is a wasteful number, since it uses less digits than its factorization.

20342033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18654.

The product of its (nonzero) digits is 432, while the sum is 17.

The square root of 20342033 is about 4510.2142964609. The cubic root of 20342033 is about 272.9803910115.

Adding to 20342033 its reverse (33024302), we get a palindrome (53366335).

The spelling of 20342033 in words is "twenty million, three hundred forty-two thousand, thirty-three".