42233771 has 2 divisors, whose sum is σ = 42233772. Its totient is φ = 42233770.

The previous prime is 42233767. The next prime is 42233791. The reversal of 42233771 is 17733224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42233771 - 2² = 42233767 is a prime.

It is not a weakly prime, because it can be changed into another prime (42233791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21116885 + 21116886.

It is an arithmetic number, because the mean of its divisors is an integer number (21116886).

Almost surely, 2^42233771 is an apocalyptic number.

42233771 is a deficient number, since it is larger than the sum of its proper divisors (1).

42233771 is an equidigital number, since it uses as much as digits as its factorization.

42233771 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7056, while the sum is 29.

The square root of 42233771 is about 6498.7514954797. The cubic root of 42233771 is about 348.2463876972.

Adding to 42233771 its reverse (17733224), we get a palindrome (59966995).

The spelling of 42233771 in words is "forty-two million, two hundred thirty-three thousand, seven hundred seventy-one".