42824357 has 2 divisors, whose sum is σ = 42824358. Its totient is φ = 42824356.

The previous prime is 42824339. The next prime is 42824381. The reversal of 42824357 is 75342824.

42824357 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 can be written as a sum of positive squares in only one way, i.e., 37957921 + 4866436 = 6161^2 + 2206^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42824357 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 (42824317) 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, 21412178 + 21412179.

It is an arithmetic number, because the mean of its divisors is an integer number (21412179).

Almost surely, 2^42824357 is an apocalyptic number.

It is an amenable number.

42824357 is a deficient number, since it is larger than the sum of its proper divisors (1).

42824357 is an equidigital number, since it uses as much as digits as its factorization.

42824357 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 53760, while the sum is 35.

The square root of 42824357 is about 6544.0321667914. The cubic root of 42824357 is about 349.8621416257.

The spelling of 42824357 in words is "forty-two million, eight hundred twenty-four thousand, three hundred fifty-seven".