268690788 has 36 divisors (see below), whose sum is σ = 680101968. Its totient is φ = 89443440.

The previous prime is 268690783. The next prime is 268690801. The reversal of 268690788 is 887096862.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (268690783) 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 11 ways as a sum of consecutive naturals, for example, 24595 + ... + 33797.

Almost surely, 2^268690788 is an apocalyptic number.

It is an amenable number.

268690788 is an abundant number, since it is smaller than the sum of its proper divisors (411411180).

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

268690788 is a wasteful number, since it uses less digits than its factorization.

268690788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10024 (or 10019 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 54.

The square root of 268690788 is about 16391.7902622014. The cubic root of 268690788 is about 645.2840429145.

The spelling of 268690788 in words is "two hundred sixty-eight million, six hundred ninety thousand, seven hundred eighty-eight".