242342478 has 24 divisors (see below), whose sum is σ = 600086448. Its totient is φ = 69240672.

The previous prime is 242342393. The next prime is 242342479. The reversal of 242342478 is 874243242.

242342478 is a `hidden beast` number, since 242 + 342 + 4 + 78 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242342479) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 961551 + ... + 961802.

It is an arithmetic number, because the mean of its divisors is an integer number (25003602).

Almost surely, 2^242342478 is an apocalyptic number.

242342478 is an abundant number, since it is smaller than the sum of its proper divisors (357743970).

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

242342478 is a wasteful number, since it uses less digits than its factorization.

242342478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1923368 (or 1923365 counting only the distinct ones).

The product of its digits is 86016, while the sum is 36.

The square root of 242342478 is about 15567.3529541795. The cubic root of 242342478 is about 623.4617986308.

The spelling of 242342478 in words is "two hundred forty-two million, three hundred forty-two thousand, four hundred seventy-eight".