268931838 has 32 divisors (see below), whose sum is σ = 627784704. Its totient is φ = 75202272.

The previous prime is 268931837. The next prime is 268931843. The reversal of 268931838 is 838139862.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268931837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66145 + ... + 70092.

It is an arithmetic number, because the mean of its divisors is an integer number (19618272).

Almost surely, 2^268931838 is an apocalyptic number.

268931838 is an abundant number, since it is smaller than the sum of its proper divisors (358852866).

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

268931838 is a wasteful number, since it uses less digits than its factorization.

268931838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136296.

The product of its digits is 497664, while the sum is 48.

The square root of 268931838 is about 16399.1413799625. The cubic root of 268931838 is about 645.4769526753.

The spelling of 268931838 in words is "two hundred sixty-eight million, nine hundred thirty-one thousand, eight hundred thirty-eight".