268763980 has 24 divisors (see below), whose sum is σ = 570749760. Its totient is φ = 106296960.

The previous prime is 268763951. The next prime is 268763981. The reversal of 268763980 is 89367862.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (268763981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73716 + ... + 77275.

It is an arithmetic number, because the mean of its divisors is an integer number (23781240).

Almost surely, 2^268763980 is an apocalyptic number.

268763980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

268763980 is an abundant number, since it is smaller than the sum of its proper divisors (301985780).

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

268763980 is a wasteful number, since it uses less digits than its factorization.

268763980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151089 (or 151087 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 49.

The square root of 268763980 is about 16394.0226912128. The cubic root of 268763980 is about 645.3426298900.

The spelling of 268763980 in words is "two hundred sixty-eight million, seven hundred sixty-three thousand, nine hundred eighty".