268049691 has 24 divisors (see below), whose sum is σ = 476534240. Its totient is φ = 141388416.

The previous prime is 268049687. The next prime is 268049713. The reversal of 268049691 is 196940862.

It is a happy number.

It is not a de Polignac number, because 268049691 - 2² = 268049687 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (268049611) 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, 162826 + ... + 164463.

Almost surely, 2^268049691 is an apocalyptic number.

268049691 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

268049691 is a deficient number, since it is larger than the sum of its proper divisors (208484549).

268049691 is a wasteful number, since it uses less digits than its factorization.

268049691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327315 (or 327312 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 268049691 is about 16372.2231538664. The cubic root of 268049691 is about 644.7704176608.

The spelling of 268049691 in words is "two hundred sixty-eight million, forty-nine thousand, six hundred ninety-one".