42240310369 has 2 divisors, whose sum is σ = 42240310370. Its totient is φ = 42240310368.

The previous prime is 42240310361. The next prime is 42240310433. The reversal of 42240310369 is 96301304224.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40456092769 + 1784217600 = 201137^2 + 42240^2 .

It is a cyclic number.

It is not a de Polignac number, because 42240310369 - 2³ = 42240310361 is a prime.

It is a super-2 number, since 2×42240310369² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42240310361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21120155184 + 21120155185.

It is an arithmetic number, because the mean of its divisors is an integer number (21120155185).

Almost surely, 2^42240310369 is an apocalyptic number.

It is an amenable number.

42240310369 is a deficient number, since it is larger than the sum of its proper divisors (1).

42240310369 is an equidigital number, since it uses as much as digits as its factorization.

42240310369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 34.

The spelling of 42240310369 in words is "forty-two billion, two hundred forty million, three hundred ten thousand, three hundred sixty-nine".