234457649 has 2 divisors, whose sum is σ = 234457650. Its totient is φ = 234457648.

The previous prime is 234457579. The next prime is 234457669. The reversal of 234457649 is 946754432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 190633249 + 43824400 = 13807^2 + 6620^2 .

It is a cyclic number.

It is not a de Polignac number, because 234457649 - 2¹² = 234453553 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (234457669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117228824 + 117228825.

It is an arithmetic number, because the mean of its divisors is an integer number (117228825).

Almost surely, 2^234457649 is an apocalyptic number.

It is an amenable number.

234457649 is a deficient number, since it is larger than the sum of its proper divisors (1).

234457649 is an equidigital number, since it uses as much as digits as its factorization.

234457649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 44.

The square root of 234457649 is about 15312.0099595056. The cubic root of 234457649 is about 616.6254829407.

The spelling of 234457649 in words is "two hundred thirty-four million, four hundred fifty-seven thousand, six hundred forty-nine".