268489428 has 24 divisors (see below), whose sum is σ = 627883200. Its totient is φ = 89295360.

The previous prime is 268489423. The next prime is 268489433. The reversal of 268489428 is 824984862.

It is an interprime number because it is at equal distance from previous prime (268489423) and next prime (268489433).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268489423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19528 + ... + 30303.

It is an arithmetic number, because the mean of its divisors is an integer number (26161800).

Almost surely, 2^268489428 is an apocalyptic number.

It is an amenable number.

268489428 is an abundant number, since it is smaller than the sum of its proper divisors (359393772).

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

268489428 is a wasteful number, since it uses less digits than its factorization.

268489428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50287 (or 50285 counting only the distinct ones).

The product of its digits is 1769472, while the sum is 51.

The square root of 268489428 is about 16385.6470119431. The cubic root of 268489428 is about 645.1228081764.

The spelling of 268489428 in words is "two hundred sixty-eight million, four hundred eighty-nine thousand, four hundred twenty-eight".