42020233 has 2 divisors, whose sum is σ = 42020234. Its totient is φ = 42020232.

The previous prime is 42020227. The next prime is 42020249. The reversal of 42020233 is 33202024.

It is an a-pointer prime, because the next prime (42020249) can be obtained adding 42020233 to its sum of digits (16).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39287824 + 2732409 = 6268^2 + 1653^2 .

It is a cyclic number.

It is not a de Polignac number, because 42020233 - 2⁵ = 42020201 is a prime.

It is not a weakly prime, because it can be changed into another prime (42020273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21010116 + 21010117.

It is an arithmetic number, because the mean of its divisors is an integer number (21010117).

Almost surely, 2^42020233 is an apocalyptic number.

It is an amenable number.

42020233 is a deficient number, since it is larger than the sum of its proper divisors (1).

42020233 is an equidigital number, since it uses as much as digits as its factorization.

42020233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 42020233 is about 6482.3015202935. The cubic root of 42020233 is about 347.6584733430.

Adding to 42020233 its reverse (33202024), we get a palindrome (75222257).

The spelling of 42020233 in words is "forty-two million, twenty thousand, two hundred thirty-three".