242875381 has 16 divisors (see below), whose sum is σ = 280990080. Its totient is φ = 205632000.

The previous prime is 242875357. The next prime is 242875397. The reversal of 242875381 is 183578242.

It is a happy number.

It is not a de Polignac number, because 242875381 - 2¹⁹ = 242351093 is a prime.

It is a super-2 number, since 2×242875381² = 117976901391790322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242878381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 240205 + ... + 241213.

It is an arithmetic number, because the mean of its divisors is an integer number (17561880).

Almost surely, 2^242875381 is an apocalyptic number.

It is an amenable number.

242875381 is a deficient number, since it is larger than the sum of its proper divisors (38114699).

242875381 is a wasteful number, since it uses less digits than its factorization.

242875381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1404.

The product of its digits is 107520, while the sum is 40.

The square root of 242875381 is about 15584.4595992290. The cubic root of 242875381 is about 623.9184546149.

The spelling of 242875381 in words is "two hundred forty-two million, eight hundred seventy-five thousand, three hundred eighty-one".