242354449 has 4 divisors (see below), whose sum is σ = 244754100. Its totient is φ = 239954800.

The previous prime is 242354447. The next prime is 242354471. The reversal of 242354449 is 944453242.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 111091600 + 131262849 = 10540^2 + 11457^2 .

It is a cyclic number.

It is not a de Polignac number, because 242354449 - 2¹ = 242354447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242354447) 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 in 3 ways as a sum of consecutive naturals, for example, 1199674 + ... + 1199875.

It is an arithmetic number, because the mean of its divisors is an integer number (61188525).

Almost surely, 2^242354449 is an apocalyptic number.

It is an amenable number.

242354449 is a deficient number, since it is larger than the sum of its proper divisors (2399651).

242354449 is a wasteful number, since it uses less digits than its factorization.

242354449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2399650.

The product of its digits is 138240, while the sum is 37.

The square root of 242354449 is about 15567.7374399750. The cubic root of 242354449 is about 623.4720641833.

The spelling of 242354449 in words is "two hundred forty-two million, three hundred fifty-four thousand, four hundred forty-nine".