268377978 has 16 divisors (see below), whose sum is σ = 585552096. Its totient is φ = 81326640.

The previous prime is 268377971. The next prime is 268378013. The reversal of 268377978 is 879773862.

It is not an unprimeable number, because it can be changed into a prime (268377971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2033101 + ... + 2033232.

It is an arithmetic number, because the mean of its divisors is an integer number (36597006).

Almost surely, 2^268377978 is an apocalyptic number.

268377978 is an abundant number, since it is smaller than the sum of its proper divisors (317174118).

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

268377978 is a wasteful number, since it uses less digits than its factorization.

268377978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4066349.

The product of its digits is 7112448, while the sum is 57.

The square root of 268377978 is about 16382.2458167371. The cubic root of 268377978 is about 645.0335322991.

The spelling of 268377978 in words is "two hundred sixty-eight million, three hundred seventy-seven thousand, nine hundred seventy-eight".