268693940 has 12 divisors (see below), whose sum is σ = 564257316. Its totient is φ = 107477568.

The previous prime is 268693939. The next prime is 268693973. The reversal of 268693940 is 49396862.

It can be written as a sum of positive squares in 2 ways, for example, as 209033764 + 59660176 = 14458^2 + 7724^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6717329 + ... + 6717368.

It is an arithmetic number, because the mean of its divisors is an integer number (47021443).

Almost surely, 2^268693940 is an apocalyptic number.

268693940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

268693940 is an abundant number, since it is smaller than the sum of its proper divisors (295563376).

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

268693940 is a wasteful number, since it uses less digits than its factorization.

268693940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13434706 (or 13434704 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 47.

The square root of 268693940 is about 16391.8864076103. The cubic root of 268693940 is about 645.2865661711.

The spelling of 268693940 in words is "two hundred sixty-eight million, six hundred ninety-three thousand, nine hundred forty".