242173894 has 8 divisors (see below), whose sum is σ = 363881448. Its totient is φ = 120880080.

The previous prime is 242173847. The next prime is 242173901. The reversal of 242173894 is 498371242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 101967 + ... + 104314.

It is an arithmetic number, because the mean of its divisors is an integer number (45485181).

Almost surely, 2^242173894 is an apocalyptic number.

242173894 is a deficient number, since it is larger than the sum of its proper divisors (121707554).

242173894 is a wasteful number, since it uses less digits than its factorization.

242173894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206870.

The product of its digits is 96768, while the sum is 40.

The square root of 242173894 is about 15561.9373472585. The cubic root of 242173894 is about 623.3171960197.

The spelling of 242173894 in words is "two hundred forty-two million, one hundred seventy-three thousand, eight hundred ninety-four".