234417409 has 2 divisors, whose sum is σ = 234417410. Its totient is φ = 234417408.

The previous prime is 234417373. The next prime is 234417457. The reversal of 234417409 is 904714432.

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., 147088384 + 87329025 = 12128^2 + 9345^2 .

It is a cyclic number.

It is not a de Polignac number, because 234417409 - 2¹¹ = 234415361 is a prime.

It is not a weakly prime, because it can be changed into another prime (234417479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117208704 + 117208705.

It is an arithmetic number, because the mean of its divisors is an integer number (117208705).

Almost surely, 2^234417409 is an apocalyptic number.

It is an amenable number.

234417409 is a deficient number, since it is larger than the sum of its proper divisors (1).

234417409 is an equidigital number, since it uses as much as digits as its factorization.

234417409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 234417409 is about 15310.6959018851. The cubic root of 234417409 is about 616.5902037489.

The spelling of 234417409 in words is "two hundred thirty-four million, four hundred seventeen thousand, four hundred nine".