268266220 has 12 divisors (see below), whose sum is σ = 563359104. Its totient is φ = 107306480.

The previous prime is 268266217. The next prime is 268266223. The reversal of 268266220 is 22662862.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (268266217) and next prime (268266223).

It is not an unprimeable number, because it can be changed into a prime (268266223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6706636 + ... + 6706675.

It is an arithmetic number, because the mean of its divisors is an integer number (46946592).

Almost surely, 2^268266220 is an apocalyptic number.

268266220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

268266220 is an abundant number, since it is smaller than the sum of its proper divisors (295092884).

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

268266220 is a wasteful number, since it uses less digits than its factorization.

268266220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13413320 (or 13413318 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 268266220 is about 16378.8345128706. The cubic root of 268266220 is about 644.9439848797.

The spelling of 268266220 in words is "two hundred sixty-eight million, two hundred sixty-six thousand, two hundred twenty".