268681383 has 24 divisors (see below), whose sum is σ = 399499776. Its totient is φ = 173880000.

The previous prime is 268681381. The next prime is 268681409. The reversal of 268681383 is 383186862.

268681383 is a `hidden beast` number, since 268 + 6 + 8 + 1 + 383 = 666.

It is not a de Polignac number, because 268681383 - 2¹ = 268681381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268681381) 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, 232858 + ... + 234008.

It is an arithmetic number, because the mean of its divisors is an integer number (16645824).

Almost surely, 2^268681383 is an apocalyptic number.

268681383 is a deficient number, since it is larger than the sum of its proper divisors (130818393).

268681383 is a wasteful number, since it uses less digits than its factorization.

268681383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1895 (or 1892 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The square root of 268681383 is about 16391.5033782750. The cubic root of 268681383 is about 645.2765138545.

The spelling of 268681383 in words is "two hundred sixty-eight million, six hundred eighty-one thousand, three hundred eighty-three".