268442178 has 16 divisors (see below), whose sum is σ = 551395200. Its totient is φ = 87062256.

The previous prime is 268442173. The next prime is 268442179. The reversal of 268442178 is 871244862.

It is a super-2 number, since 2×268442178² = 144122405858767368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (268442173) 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, 604378 + ... + 604821.

It is an arithmetic number, because the mean of its divisors is an integer number (34462200).

Almost surely, 2^268442178 is an apocalyptic number.

268442178 is an abundant number, since it is smaller than the sum of its proper divisors (282953022).

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

268442178 is a wasteful number, since it uses less digits than its factorization.

268442178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1209241.

The product of its digits is 172032, while the sum is 42.

The square root of 268442178 is about 16384.2051378759. The cubic root of 268442178 is about 645.0849620668.

The spelling of 268442178 in words is "two hundred sixty-eight million, four hundred forty-two thousand, one hundred seventy-eight".