42414409 has 2 divisors, whose sum is σ = 42414410. Its totient is φ = 42414408.

The previous prime is 42414367. The next prime is 42414413. The reversal of 42414409 is 90441424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37552384 + 4862025 = 6128^2 + 2205^2 .

It is a cyclic number.

It is not a de Polignac number, because 42414409 - 2⁹ = 42413897 is a prime.

It is not a weakly prime, because it can be changed into another prime (42414419) 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, 21207204 + 21207205.

It is an arithmetic number, because the mean of its divisors is an integer number (21207205).

Almost surely, 2^42414409 is an apocalyptic number.

It is an amenable number.

42414409 is a deficient number, since it is larger than the sum of its proper divisors (1).

42414409 is an equidigital number, since it uses as much as digits as its factorization.

42414409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 42414409 is about 6512.6345667479. The cubic root of 42414409 is about 348.7421762268.

The spelling of 42414409 in words is "forty-two million, four hundred fourteen thousand, four hundred nine".