242404453 has 2 divisors, whose sum is σ = 242404454. Its totient is φ = 242404452.

The previous prime is 242404441. The next prime is 242404471. The reversal of 242404453 is 354404242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 183927844 + 58476609 = 13562^2 + 7647^2 .

It is a cyclic number.

It is not a de Polignac number, because 242404453 - 2¹³ = 242396261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242404433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121202226 + 121202227.

It is an arithmetic number, because the mean of its divisors is an integer number (121202227).

Almost surely, 2^242404453 is an apocalyptic number.

It is an amenable number.

242404453 is a deficient number, since it is larger than the sum of its proper divisors (1).

242404453 is an equidigital number, since it uses as much as digits as its factorization.

242404453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15360, while the sum is 28.

The square root of 242404453 is about 15569.3433708683. The cubic root of 242404453 is about 623.5149407131.

Adding to 242404453 its reverse (354404242), we get a palindrome (596808695).

The spelling of 242404453 in words is "two hundred forty-two million, four hundred four thousand, four hundred fifty-three".