242374387 has 4 divisors (see below), whose sum is σ = 243317736. Its totient is φ = 241431040.

The previous prime is 242374357. The next prime is 242374397. The reversal of 242374387 is 783473242.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242374387 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242374357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 471289 + ... + 471802.

It is an arithmetic number, because the mean of its divisors is an integer number (60829434).

Almost surely, 2^242374387 is an apocalyptic number.

242374387 is a deficient number, since it is larger than the sum of its proper divisors (943349).

242374387 is an equidigital number, since it uses as much as digits as its factorization.

242374387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943348.

The product of its digits is 225792, while the sum is 40.

The square root of 242374387 is about 15568.3777896093. The cubic root of 242374387 is about 623.4891609676.

The spelling of 242374387 in words is "two hundred forty-two million, three hundred seventy-four thousand, three hundred eighty-seven".