268671720 has 32 divisors (see below), whose sum is σ = 806015520. Its totient is φ = 71645760.

The previous prime is 268671719. The next prime is 268671727. The reversal of 268671720 is 27176862.

It is not an unprimeable number, because it can be changed into a prime (268671727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1119346 + ... + 1119585.

It is an arithmetic number, because the mean of its divisors is an integer number (25187985).

Almost surely, 2^268671720 is an apocalyptic number.

268671720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

268671720 is an abundant number, since it is smaller than the sum of its proper divisors (537343800).

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

268671720 is a wasteful number, since it uses less digits than its factorization.

268671720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2238945 (or 2238941 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 268671720 is about 16391.2086192568. The cubic root of 268671720 is about 645.2687780726.

The spelling of 268671720 in words is "two hundred sixty-eight million, six hundred seventy-one thousand, seven hundred twenty".