268140210 has 128 divisors (see below), whose sum is σ = 731566080. Its totient is φ = 62405376.

The previous prime is 268140203. The next prime is 268140227. The reversal of 268140210 is 12041862.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1497901 + ... + 1498079.

It is an arithmetic number, because the mean of its divisors is an integer number (5715360).

Almost surely, 2^268140210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 268140210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (365783040).

268140210 is an abundant number, since it is smaller than the sum of its proper divisors (463425870).

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

268140210 is a wasteful number, since it uses less digits than its factorization.

268140210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 268140210 is about 16374.9873282394. The cubic root of 268140210 is about 644.8429880422.

The spelling of 268140210 in words is "two hundred sixty-eight million, one hundred forty thousand, two hundred ten".