268816740 has 48 divisors (see below), whose sum is σ = 753580800. Its totient is φ = 71599360.

The previous prime is 268816739. The next prime is 268816753. The reversal of 268816740 is 47618862.

It is a junction number, because it is equal to n+sod(n) for n = 268816692 and 268816701.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60805 + ... + 65075.

It is an arithmetic number, because the mean of its divisors is an integer number (15699600).

Almost surely, 2^268816740 is an apocalyptic number.

268816740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

268816740 is an abundant number, since it is smaller than the sum of its proper divisors (484764060).

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

268816740 is a wasteful number, since it uses less digits than its factorization.

268816740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5332 (or 5330 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 268816740 is about 16395.6317353129. The cubic root of 268816740 is about 645.3848553517.

The spelling of 268816740 in words is "two hundred sixty-eight million, eight hundred sixteen thousand, seven hundred forty".