242457874 has 4 divisors (see below), whose sum is σ = 363686814. Its totient is φ = 121228936.

The previous prime is 242457871. The next prime is 242457877. The reversal of 242457874 is 478754242.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 478754242 = 2 ⋅239377121.

It is an interprime number because it is at equal distance from previous prime (242457871) and next prime (242457877).

It can be written as a sum of positive squares in only one way, i.e., 241958025 + 499849 = 15555^2 + 707^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 242457874.

It is not an unprimeable number, because it can be changed into a prime (242457871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60614467 + ... + 60614470.

Almost surely, 2^242457874 is an apocalyptic number.

242457874 is a deficient number, since it is larger than the sum of its proper divisors (121228940).

242457874 is a wasteful number, since it uses less digits than its factorization.

242457874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121228939.

The product of its digits is 501760, while the sum is 43.

The square root of 242457874 is about 15571.0588593069. The cubic root of 242457874 is about 623.5607406763.

The spelling of 242457874 in words is "two hundred forty-two million, four hundred fifty-seven thousand, eight hundred seventy-four".