268195646 has 4 divisors (see below), whose sum is σ = 402293472. Its totient is φ = 134097822.

The previous prime is 268195643. The next prime is 268195727. The reversal of 268195646 is 646591862.

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

It is a self number, because there is not a number n which added to its sum of digits gives 268195646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268195643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67048910 + ... + 67048913.

It is an arithmetic number, because the mean of its divisors is an integer number (100573368).

Almost surely, 2^268195646 is an apocalyptic number.

268195646 is a deficient number, since it is larger than the sum of its proper divisors (134097826).

268195646 is a wasteful number, since it uses less digits than its factorization.

268195646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134097825.

The product of its digits is 622080, while the sum is 47.

The square root of 268195646 is about 16376.6799443599. The cubic root of 268195646 is about 644.8874238154.

The spelling of 268195646 in words is "two hundred sixty-eight million, one hundred ninety-five thousand, six hundred forty-six".