268783845 has 32 divisors (see below), whose sum is σ = 471588480. Its totient is φ = 129642240.

The previous prime is 268783831. The next prime is 268783847. The reversal of 268783845 is 548387862.

It is a happy number.

It is not a de Polignac number, because 268783845 - 2⁵ = 268783813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268783847) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28371 + ... + 36639.

It is an arithmetic number, because the mean of its divisors is an integer number (14737140).

Almost surely, 2^268783845 is an apocalyptic number.

It is an amenable number.

268783845 is a deficient number, since it is larger than the sum of its proper divisors (202804635).

268783845 is a wasteful number, since it uses less digits than its factorization.

268783845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8485.

The product of its digits is 2580480, while the sum is 51.

The square root of 268783845 is about 16394.6285410802. The cubic root of 268783845 is about 645.3585291132.

The spelling of 268783845 in words is "two hundred sixty-eight million, seven hundred eighty-three thousand, eight hundred forty-five".