268628468 has 12 divisors (see below), whose sum is σ = 470242500. Its totient is φ = 134273472.

The previous prime is 268628467. The next prime is 268628471. The reversal of 268628468 is 864826862.

It can be written as a sum of positive squares in 2 ways, for example, as 180042724 + 88585744 = 13418^2 + 9412^2 .

It is a super-2 number, since 2×268628468² = 144322507640054048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268628467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8408 + ... + 24656.

It is an arithmetic number, because the mean of its divisors is an integer number (39186875).

Almost surely, 2^268628468 is an apocalyptic number.

It is an amenable number.

268628468 is a deficient number, since it is larger than the sum of its proper divisors (201614032).

268628468 is a wasteful number, since it uses less digits than its factorization.

268628468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20386 (or 20384 counting only the distinct ones).

The product of its digits is 1769472, while the sum is 50.

The square root of 268628468 is about 16389.8892003576. The cubic root of 268628468 is about 645.2341501098.

The spelling of 268628468 in words is "two hundred sixty-eight million, six hundred twenty-eight thousand, four hundred sixty-eight".