268744137 has 8 divisors (see below), whose sum is σ = 358771680. Its totient is φ = 178939680.

The previous prime is 268744103. The next prime is 268744199. The reversal of 268744137 is 731447862.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 268744137 - 2⁷ = 268744009 is a prime.

It is a super-2 number, since 2×268744137² = 144446822343749538, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (268744237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52939 + ... + 57792.

It is an arithmetic number, because the mean of its divisors is an integer number (44846460).

Almost surely, 2^268744137 is an apocalyptic number.

It is an amenable number.

268744137 is a deficient number, since it is larger than the sum of its proper divisors (90027543).

268744137 is a wasteful number, since it uses less digits than its factorization.

268744137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111543.

The product of its digits is 225792, while the sum is 42.

The square root of 268744137 is about 16393.4174899561. The cubic root of 268744137 is about 645.3267474927.

The spelling of 268744137 in words is "two hundred sixty-eight million, seven hundred forty-four thousand, one hundred thirty-seven".