242178430 has 32 divisors (see below), whose sum is σ = 497073024. Its totient is φ = 84158976.

The previous prime is 242178407. The next prime is 242178437. The reversal of 242178430 is 34871242.

It is a junction number, because it is equal to n+sod(n) for n = 242178392 and 242178401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242178437) 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 15 ways as a sum of consecutive naturals, for example, 52582 + ... + 57001.

It is an arithmetic number, because the mean of its divisors is an integer number (15533532).

Almost surely, 2^242178430 is an apocalyptic number.

242178430 is an abundant number, since it is smaller than the sum of its proper divisors (254894594).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

242178430 is a wasteful number, since it uses less digits than its factorization.

242178430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109620.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 242178430 is about 15562.0830867850. The cubic root of 242178430 is about 623.3210876436.

The spelling of 242178430 in words is "two hundred forty-two million, one hundred seventy-eight thousand, four hundred thirty".