242543534 has 8 divisors (see below), whose sum is σ = 367215768. Its totient is φ = 120138280.

The previous prime is 242543507. The next prime is 242543563. The reversal of 242543534 is 435345242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 242543534.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 566477 + ... + 566904.

It is an arithmetic number, because the mean of its divisors is an integer number (45901971).

Almost surely, 2^242543534 is an apocalyptic number.

242543534 is a deficient number, since it is larger than the sum of its proper divisors (124672234).

242543534 is a wasteful number, since it uses less digits than its factorization.

242543534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133490.

The product of its digits is 57600, while the sum is 32.

The square root of 242543534 is about 15573.8092321692. The cubic root of 242543534 is about 623.6341663853.

Adding to 242543534 its reverse (435345242), we get a palindrome (677888776).

The spelling of 242543534 in words is "two hundred forty-two million, five hundred forty-three thousand, five hundred thirty-four".