243134442 has 24 divisors (see below), whose sum is σ = 557779716. Its totient is φ = 76277376.

The previous prime is 243134417. The next prime is 243134453. The reversal of 243134442 is 244431342.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 184932801 + 58201641 = 13599^2 + 7629^2 .

It is a super-2 number, since 2×243134442² = 118228713773302728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 396973 + ... + 397584.

Almost surely, 2^243134442 is an apocalyptic number.

243134442 is an abundant number, since it is smaller than the sum of its proper divisors (314645274).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243134442 is a wasteful number, since it uses less digits than its factorization.

243134442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794582 (or 794579 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

The square root of 243134442 is about 15592.7689010002. The cubic root of 243134442 is about 624.1402082621.

Adding to 243134442 its reverse (244431342), we get a palindrome (487565784).

The spelling of 243134442 in words is "two hundred forty-three million, one hundred thirty-four thousand, four hundred forty-two".