268402100 has 18 divisors (see below), whose sum is σ = 582432774. Its totient is φ = 107360800.

The previous prime is 268402091. The next prime is 268402129. The reversal of 268402100 is 1204862.

It can be written as a sum of positive squares in 3 ways, for example, as 163216 + 268238884 = 404^2 + 16378^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1341911 + ... + 1342110.

Almost surely, 2^268402100 is an apocalyptic number.

268402100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

268402100 is an abundant number, since it is smaller than the sum of its proper divisors (314030674).

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

268402100 is a wasteful number, since it uses less digits than its factorization.

268402100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2684035 (or 2684028 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 268402100 is about 16382.9820240395. The cubic root of 268402100 is about 645.0528570749.

Adding to 268402100 its reverse (1204862), we get a palindrome (269606962).

The spelling of 268402100 in words is "two hundred sixty-eight million, four hundred two thousand, one hundred".