242278183 has 16 divisors (see below), whose sum is σ = 284981760. Its totient is φ = 201622176.

The previous prime is 242278171. The next prime is 242278187. The reversal of 242278183 is 381872242.

It is not a de Polignac number, because 242278183 - 2⁹ = 242277671 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242278187) 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 15 ways as a sum of consecutive naturals, for example, 191808 + ... + 193066.

It is an arithmetic number, because the mean of its divisors is an integer number (17811360).

Almost surely, 2^242278183 is an apocalyptic number.

242278183 is a deficient number, since it is larger than the sum of its proper divisors (42703577).

242278183 is a wasteful number, since it uses less digits than its factorization.

242278183 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2046.

The product of its digits is 43008, while the sum is 37.

The square root of 242278183 is about 15565.2877583423. The cubic root of 242278183 is about 623.4066576279.

The spelling of 242278183 in words is "two hundred forty-two million, two hundred seventy-eight thousand, one hundred eighty-three".