268697428 has 6 divisors (see below), whose sum is σ = 470220506. Its totient is φ = 134348712.

The previous prime is 268697417. The next prime is 268697453. The reversal of 268697428 is 824796862.

268697428 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 262051344 + 6646084 = 16188^2 + 2578^2 .

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, 33587175 + ... + 33587182.

Almost surely, 2^268697428 is an apocalyptic number.

It is an amenable number.

268697428 is a deficient number, since it is larger than the sum of its proper divisors (201523078).

268697428 is a wasteful number, since it uses less digits than its factorization.

268697428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67174361 (or 67174359 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 52.

The square root of 268697428 is about 16391.9928013649. The cubic root of 268697428 is about 645.2893583812.

The spelling of 268697428 in words is "two hundred sixty-eight million, six hundred ninety-seven thousand, four hundred twenty-eight".