268880988 has 24 divisors (see below), whose sum is σ = 633603600. Its totient is φ = 88739200.

The previous prime is 268880987. The next prime is 268880999. The reversal of 268880988 is 889088862.

It is a super-2 number, since 2×268880988² = 144593971415712288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268880987) 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, 109713 + ... + 112136.

It is an arithmetic number, because the mean of its divisors is an integer number (26400150).

Almost surely, 2^268880988 is an apocalyptic number.

It is an amenable number.

268880988 is an abundant number, since it is smaller than the sum of its proper divisors (364722612).

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

268880988 is a wasteful number, since it uses less digits than its factorization.

268880988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221957 (or 221955 counting only the distinct ones).

The product of its (nonzero) digits is 3538944, while the sum is 57.

The square root of 268880988 is about 16397.5909206200. The cubic root of 268880988 is about 645.4362675557.

The spelling of 268880988 in words is "two hundred sixty-eight million, eight hundred eighty thousand, nine hundred eighty-eight".