42033791 has 2 divisors, whose sum is σ = 42033792. Its totient is φ = 42033790.

The previous prime is 42033787. The next prime is 42033821. The reversal of 42033791 is 19733024.

42033791 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42033791 - 2² = 42033787 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42033701) 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 as a sum of consecutive naturals, namely, 21016895 + 21016896.

It is an arithmetic number, because the mean of its divisors is an integer number (21016896).

Almost surely, 2^42033791 is an apocalyptic number.

42033791 is a deficient number, since it is larger than the sum of its proper divisors (1).

42033791 is an equidigital number, since it uses as much as digits as its factorization.

42033791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 42033791 is about 6483.3472064976. The cubic root of 42033791 is about 347.6958604649.

It can be divided in two parts, 42033 and 791, that added together give a palindrome (42824).

The spelling of 42033791 in words is "forty-two million, thirty-three thousand, seven hundred ninety-one".