268420217 has 8 divisors (see below), whose sum is σ = 289429056. Its totient is φ = 247462992.

The previous prime is 268420213. The next prime is 268420223. The reversal of 268420217 is 712024862.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 268420217 - 2² = 268420213 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268420211) 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, 1733 + ... + 23234.

It is an arithmetic number, because the mean of its divisors is an integer number (36178632).

Almost surely, 2^268420217 is an apocalyptic number.

It is an amenable number.

268420217 is a deficient number, since it is larger than the sum of its proper divisors (21008839).

268420217 is a wasteful number, since it uses less digits than its factorization.

268420217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25807.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 268420217 is about 16383.5349360265. The cubic root of 268420217 is about 645.0673703241.

The spelling of 268420217 in words is "two hundred sixty-eight million, four hundred twenty thousand, two hundred seventeen".