268351620 has 24 divisors (see below), whose sum is σ = 751384704. Its totient is φ = 71560416.

The previous prime is 268351597. The next prime is 268351621. The reversal of 268351620 is 26153862.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (268351621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2236204 + ... + 2236323.

It is an arithmetic number, because the mean of its divisors is an integer number (31307696).

Almost surely, 2^268351620 is an apocalyptic number.

268351620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

268351620 is an abundant number, since it is smaller than the sum of its proper divisors (483033084).

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

268351620 is a wasteful number, since it uses less digits than its factorization.

268351620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4472539 (or 4472537 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 268351620 is about 16381.4413285278. The cubic root of 268351620 is about 645.0124148803.

The spelling of 268351620 in words is "two hundred sixty-eight million, three hundred fifty-one thousand, six hundred twenty".