268978342 has 4 divisors (see below), whose sum is σ = 403467516. Its totient is φ = 134489170.

The previous prime is 268978313. The next prime is 268978397. The reversal of 268978342 is 243879862.

268978342 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 243879862 = 2 ⋅121939931.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67244584 + ... + 67244587.

It is an arithmetic number, because the mean of its divisors is an integer number (100866879).

Almost surely, 2^268978342 is an apocalyptic number.

268978342 is a deficient number, since it is larger than the sum of its proper divisors (134489174).

268978342 is a wasteful number, since it uses less digits than its factorization.

268978342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134489173.

The product of its digits is 1161216, while the sum is 49.

The square root of 268978342 is about 16400.5591977835. The cubic root of 268978342 is about 645.5141560678.

The spelling of 268978342 in words is "two hundred sixty-eight million, nine hundred seventy-eight thousand, three hundred forty-two".