268220292 has 12 divisors (see below), whose sum is σ = 625847376. Its totient is φ = 89406760.

The previous prime is 268220269. The next prime is 268220299. The reversal of 268220292 is 292022862.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (268220299) 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, 11175834 + ... + 11175857.

It is an arithmetic number, because the mean of its divisors is an integer number (52153948).

Almost surely, 2^268220292 is an apocalyptic number.

It is an amenable number.

268220292 is an abundant number, since it is smaller than the sum of its proper divisors (357627084).

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

268220292 is a wasteful number, since it uses less digits than its factorization.

268220292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22351698 (or 22351696 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 268220292 is about 16377.4323994941. The cubic root of 268220292 is about 644.9071773161.

The spelling of 268220292 in words is "two hundred sixty-eight million, two hundred twenty thousand, two hundred ninety-two".