242140343 has 16 divisors (see below), whose sum is σ = 265014720. Its totient is φ = 220518144.

The previous prime is 242140337. The next prime is 242140387. The reversal of 242140343 is 343041242.

It is a cyclic number.

It is not a de Polignac number, because 242140343 - 2¹⁸ = 241878199 is a prime.

It is a super-3 number, since 3×242140343³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242140303) 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 15 ways as a sum of consecutive naturals, for example, 46205 + ... + 51177.

It is an arithmetic number, because the mean of its divisors is an integer number (16563420).

Almost surely, 2^242140343 is an apocalyptic number.

242140343 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

242140343 is a deficient number, since it is larger than the sum of its proper divisors (22874377).

242140343 is a wasteful number, since it uses less digits than its factorization.

242140343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5098.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 242140343 is about 15560.8593271708. The cubic root of 242140343 is about 623.2884097060.

Adding to 242140343 its reverse (343041242), we get a palindrome (585181585).

The spelling of 242140343 in words is "two hundred forty-two million, one hundred forty thousand, three hundred forty-three".