268491366 has 48 divisors (see below), whose sum is σ = 683439120. Its totient is φ = 75101760.

The previous prime is 268491361. The next prime is 268491383. The reversal of 268491366 is 663194862.

It is a super-2 number, since 2×268491366² = 144175227233091912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268491361) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49581 + ... + 54728.

It is an arithmetic number, because the mean of its divisors is an integer number (14238315).

Almost surely, 2^268491366 is an apocalyptic number.

268491366 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

268491366 is an abundant number, since it is smaller than the sum of its proper divisors (414947754).

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

268491366 is a wasteful number, since it uses less digits than its factorization.

268491366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104341 (or 104338 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 268491366 is about 16385.7061489580. The cubic root of 268491366 is about 645.1243603728.

The spelling of 268491366 in words is "two hundred sixty-eight million, four hundred ninety-one thousand, three hundred sixty-six".