242043542 has 8 divisors (see below), whose sum is σ = 390993456. Its totient is φ = 111712392.

The previous prime is 242043539. The next prime is 242043551. The reversal of 242043542 is 245340242.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 9309367 = 242043542 / (2 + 4 + 2 + 0 + 4 + 3 + 5 + 4 + 2).

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, 4654658 + ... + 4654709.

It is an arithmetic number, because the mean of its divisors is an integer number (48874182).

Almost surely, 2^242043542 is an apocalyptic number.

242043542 is a deficient number, since it is larger than the sum of its proper divisors (148949914).

242043542 is a wasteful number, since it uses less digits than its factorization.

242043542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9309382.

The product of its (nonzero) digits is 7680, while the sum is 26.

The square root of 242043542 is about 15557.7486160434. The cubic root of 242043542 is about 623.2053408233.

Adding to 242043542 its reverse (245340242), we get a palindrome (487383784).

The spelling of 242043542 in words is "two hundred forty-two million, forty-three thousand, five hundred forty-two".