242595381 has 8 divisors (see below), whose sum is σ = 369669184. Its totient is φ = 138625920.

The previous prime is 242595371. The next prime is 242595383. The reversal of 242595381 is 183595242.

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

It is not a de Polignac number, because 242595381 - 2⁵ = 242595349 is a prime.

It is a super-2 number, since 2×242595381² = 117705037765070322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242595383) 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 7 ways as a sum of consecutive naturals, for example, 5776060 + ... + 5776101.

It is an arithmetic number, because the mean of its divisors is an integer number (46208648).

Almost surely, 2^242595381 is an apocalyptic number.

242595381 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

242595381 is a deficient number, since it is larger than the sum of its proper divisors (127073803).

242595381 is a wasteful number, since it uses less digits than its factorization.

242595381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11552171.

The product of its digits is 86400, while the sum is 39.

The square root of 242595381 is about 15575.4737006616. The cubic root of 242595381 is about 623.6785999988.

The spelling of 242595381 in words is "two hundred forty-two million, five hundred ninety-five thousand, three hundred eighty-one".