242715431 has 8 divisors (see below), whose sum is σ = 277806624. Its totient is φ = 207728640.

The previous prime is 242715397. The next prime is 242715457. The reversal of 242715431 is 134517242.

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

It is a de Polignac number, because none of the positive numbers 2^k-242715431 is a prime.

It is a super-2 number, since 2×242715431² = 117821560891031522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 242715394 and 242715403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242715331) 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, 21050 + ... + 30471.

It is an arithmetic number, because the mean of its divisors is an integer number (34725828).

Almost surely, 2^242715431 is an apocalyptic number.

242715431 is a deficient number, since it is larger than the sum of its proper divisors (35091193).

242715431 is an equidigital number, since it uses as much as digits as its factorization.

242715431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52201.

The product of its digits is 6720, while the sum is 29.

The square root of 242715431 is about 15579.3270393814. The cubic root of 242715431 is about 623.7814602547.

The spelling of 242715431 in words is "two hundred forty-two million, seven hundred fifteen thousand, four hundred thirty-one".