268751540 has 12 divisors (see below), whose sum is σ = 564378276. Its totient is φ = 107500608.

The previous prime is 268751519. The next prime is 268751551. The reversal of 268751540 is 45157862.

It can be written as a sum of positive squares in 2 ways, for example, as 85636516 + 183115024 = 9254^2 + 13532^2 .

It is a junction number, because it is equal to n+sod(n) for n = 268751494 and 268751503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6718769 + ... + 6718808.

It is an arithmetic number, because the mean of its divisors is an integer number (47031523).

Almost surely, 2^268751540 is an apocalyptic number.

268751540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

268751540 is an abundant number, since it is smaller than the sum of its proper divisors (295626736).

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

268751540 is a wasteful number, since it uses less digits than its factorization.

268751540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13437586 (or 13437584 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 268751540 is about 16393.6432802474. The cubic root of 268751540 is about 645.3326729677.

The spelling of 268751540 in words is "two hundred sixty-eight million, seven hundred fifty-one thousand, five hundred forty".