42924023 has 2 divisors, whose sum is σ = 42924024. Its totient is φ = 42924022.

The previous prime is 42924017. The next prime is 42924041. The reversal of 42924023 is 32042924.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42924023 - 2¹² = 42919927 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 42923983 and 42924001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42924043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21462011 + 21462012.

It is an arithmetic number, because the mean of its divisors is an integer number (21462012).

Almost surely, 2^42924023 is an apocalyptic number.

42924023 is a deficient number, since it is larger than the sum of its proper divisors (1).

42924023 is an equidigital number, since it uses as much as digits as its factorization.

42924023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 42924023 is about 6551.6427710918. The cubic root of 42924023 is about 350.1333451093.

Adding to 42924023 its reverse (32042924), we get a palindrome (74966947).

The spelling of 42924023 in words is "forty-two million, nine hundred twenty-four thousand, twenty-three".