424215469 has 2 divisors, whose sum is σ = 424215470. Its totient is φ = 424215468.

The previous prime is 424215437. The next prime is 424215497. The reversal of 424215469 is 964512424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 295392969 + 128822500 = 17187^2 + 11350^2 .

It is a cyclic number.

It is not a de Polignac number, because 424215469 - 2⁵ = 424215437 is a prime.

It is a super-2 number, since 2×424215469² = 359917528277779922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (424215409) 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, 212107734 + 212107735.

It is an arithmetic number, because the mean of its divisors is an integer number (212107735).

Almost surely, 2^424215469 is an apocalyptic number.

It is an amenable number.

424215469 is a deficient number, since it is larger than the sum of its proper divisors (1).

424215469 is an equidigital number, since it uses as much as digits as its factorization.

424215469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69120, while the sum is 37.

The square root of 424215469 is about 20596.4916672719. The cubic root of 424215469 is about 751.3843876481.

The spelling of 424215469 in words is "four hundred twenty-four million, two hundred fifteen thousand, four hundred sixty-nine".