268778370 has 256 divisors, whose sum is σ = 836075520. Its totient is φ = 53913600.

The previous prime is 268778369. The next prime is 268778387. The reversal of 268778370 is 73877862.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 5071264 + ... + 5071316.

It is an arithmetic number, because the mean of its divisors is an integer number (3265920).

Almost surely, 2^268778370 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 268778370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (418037760).

268778370 is an abundant number, since it is smaller than the sum of its proper divisors (567297150).

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

268778370 is a wasteful number, since it uses less digits than its factorization.

268778370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161.

The product of its (nonzero) digits is 790272, while the sum is 48.

The square root of 268778370 is about 16394.4615648090. The cubic root of 268778370 is about 645.3541472006.

The spelling of 268778370 in words is "two hundred sixty-eight million, seven hundred seventy-eight thousand, three hundred seventy".