268802646 has 32 divisors (see below), whose sum is σ = 615783168. Its totient is φ = 76628640.

The previous prime is 268802629. The next prime is 268802647. The reversal of 268802646 is 646208862.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 268802598 and 268802607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268802647) 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 15 ways as a sum of consecutive naturals, for example, 12421 + ... + 26303.

It is an arithmetic number, because the mean of its divisors is an integer number (19243224).

Almost surely, 2^268802646 is an apocalyptic number.

268802646 is an abundant number, since it is smaller than the sum of its proper divisors (346980522).

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

268802646 is a wasteful number, since it uses less digits than its factorization.

268802646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14356.

The product of its (nonzero) digits is 221184, while the sum is 42.

The square root of 268802646 is about 16395.2019200741. The cubic root of 268802646 is about 645.3735760280.

The spelling of 268802646 in words is "two hundred sixty-eight million, eight hundred two thousand, six hundred forty-six".