268081837 has 4 divisors (see below), whose sum is σ = 268124796. Its totient is φ = 268038880.

The previous prime is 268081819. The next prime is 268081873. The reversal of 268081837 is 738180862.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 96707556 + 171374281 = 9834^2 + 13091^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-268081837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 268081793 and 268081802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268081237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10114 + ... + 25267.

It is an arithmetic number, because the mean of its divisors is an integer number (67031199).

Almost surely, 2^268081837 is an apocalyptic number.

It is an amenable number.

268081837 is a deficient number, since it is larger than the sum of its proper divisors (42959).

268081837 is an equidigital number, since it uses as much as digits as its factorization.

268081837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42958.

The product of its (nonzero) digits is 129024, while the sum is 43.

The square root of 268081837 is about 16373.2048481658. The cubic root of 268081837 is about 644.7961914409.

The spelling of 268081837 in words is "two hundred sixty-eight million, eighty-one thousand, eight hundred thirty-seven".