415021469 has 2 divisors, whose sum is σ = 415021470. Its totient is φ = 415021468.

The previous prime is 415021447. The next prime is 415021487. The reversal of 415021469 is 964120514.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 322669369 + 92352100 = 17963^2 + 9610^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-415021469 is a prime.

It is a super-2 number, since 2×415021469² = 344485639461835922, which contains 22 as substring.

It is a Chen prime.

It is equal to p_22093916 and since 415021469 and 22093916 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (415021069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 207510734 + 207510735.

It is an arithmetic number, because the mean of its divisors is an integer number (207510735).

Almost surely, 2^415021469 is an apocalyptic number.

It is an amenable number.

415021469 is a deficient number, since it is larger than the sum of its proper divisors (1).

415021469 is an equidigital number, since it uses as much as digits as its factorization.

415021469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 415021469 is about 20372.0757165292. The cubic root of 415021469 is about 745.9164548607.

The spelling of 415021469 in words is "four hundred fifteen million, twenty-one thousand, four hundred sixty-nine".