242531429 has 6 divisors (see below), whose sum is σ = 282128454. Its totient is φ = 207884040.

The previous prime is 242531423. The next prime is 242531459. The reversal of 242531429 is 924135242.

It can be written as a sum of positive squares in only one way, i.e., 203718529 + 38812900 = 14273^2 + 6230^2 .

It is not a de Polignac number, because 242531429 - 2⁴ = 242531413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 242531395 and 242531404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242531423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2474762 + ... + 2474859.

It is an arithmetic number, because the mean of its divisors is an integer number (47021409).

Almost surely, 2^242531429 is an apocalyptic number.

It is an amenable number.

242531429 is a deficient number, since it is larger than the sum of its proper divisors (39597025).

242531429 is an equidigital number, since it uses as much as digits as its factorization.

242531429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4949635 (or 4949628 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 242531429 is about 15573.4205940763. The cubic root of 242531429 is about 623.6237913170.

The spelling of 242531429 in words is "two hundred forty-two million, five hundred thirty-one thousand, four hundred twenty-nine".