42415369 has 2 divisors, whose sum is σ = 42415370. Its totient is φ = 42415368.

The previous prime is 42415363. The next prime is 42415397. The reversal of 42415369 is 96351424.

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., 29019769 + 13395600 = 5387^2 + 3660^2 .

It is a cyclic number.

It is not a de Polignac number, because 42415369 - 2¹⁹ = 41891081 is a prime.

It is a super-2 number, since 2×42415369² = 3598127054812322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42415363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21207684 + 21207685.

It is an arithmetic number, because the mean of its divisors is an integer number (21207685).

Almost surely, 2^42415369 is an apocalyptic number.

It is an amenable number.

42415369 is a deficient number, since it is larger than the sum of its proper divisors (1).

42415369 is an equidigital number, since it uses as much as digits as its factorization.

42415369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 34.

The square root of 42415369 is about 6512.7082692226. The cubic root of 42415369 is about 348.7448073292.

The spelling of 42415369 in words is "forty-two million, four hundred fifteen thousand, three hundred sixty-nine".