242018439 has 32 divisors (see below), whose sum is σ = 353869824. Its totient is φ = 146240640.

The previous prime is 242018437. The next prime is 242018459. The reversal of 242018439 is 934810242.

It is not a de Polignac number, because 242018439 - 2¹ = 242018437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242018437) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 648657 + ... + 649029.

It is an arithmetic number, because the mean of its divisors is an integer number (11058432).

Almost surely, 2^242018439 is an apocalyptic number.

242018439 is a deficient number, since it is larger than the sum of its proper divisors (111851385).

242018439 is a wasteful number, since it uses less digits than its factorization.

242018439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 242018439 is about 15556.9418267216. The cubic root of 242018439 is about 623.1837952997.

It can be divided in two parts, 24201 and 8439, that added together give a triangular number (32640 = T₂₅₅).

The spelling of 242018439 in words is "two hundred forty-two million, eighteen thousand, four hundred thirty-nine".