242040031 has 6 divisors (see below), whose sum is σ = 255449832. Its totient is φ = 229300740.

The previous prime is 242040023. The next prime is 242040037. The reversal of 242040031 is 130040242.

It is not a de Polignac number, because 242040031 - 2³ = 242040023 is a prime.

It is a super-2 number, since 2×242040031² = 117166753212961922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 242039987 and 242040014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242040037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 334875 + ... + 335596.

It is an arithmetic number, because the mean of its divisors is an integer number (42574972).

Almost surely, 2^242040031 is an apocalyptic number.

242040031 is a deficient number, since it is larger than the sum of its proper divisors (13409801).

242040031 is an equidigital number, since it uses as much as digits as its factorization.

242040031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670509 (or 670490 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 242040031 is about 15557.6357779709. The cubic root of 242040031 is about 623.2023274749.

Adding to 242040031 its reverse (130040242), we get a palindrome (372080273).

The spelling of 242040031 in words is "two hundred forty-two million, forty thousand, thirty-one".