42243337 has 2 divisors, whose sum is σ = 42243338. Its totient is φ = 42243336.

The previous prime is 42243281. The next prime is 42243349. The reversal of 42243337 is 73334224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29419776 + 12823561 = 5424^2 + 3581^2 .

It is a cyclic number.

It is not a de Polignac number, because 42243337 - 2²³ = 33854729 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42243037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21121668 + 21121669.

It is an arithmetic number, because the mean of its divisors is an integer number (21121669).

Almost surely, 2^42243337 is an apocalyptic number.

It is an amenable number.

42243337 is a deficient number, since it is larger than the sum of its proper divisors (1).

42243337 is an equidigital number, since it uses as much as digits as its factorization.

42243337 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 28.

The square root of 42243337 is about 6499.4874413295. The cubic root of 42243337 is about 348.2726784544.

The spelling of 42243337 in words is "forty-two million, two hundred forty-three thousand, three hundred thirty-seven".