228178466 has 8 divisors (see below), whose sum is σ = 343171920. Its totient is φ = 113787828.

The previous prime is 228178459. The next prime is 228178501. The reversal of 228178466 is 664871822.

228178466 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×228178466² = 104130824692226312, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149756 + ... + 151271.

It is an arithmetic number, because the mean of its divisors is an integer number (42896490).

Almost surely, 2^228178466 is an apocalyptic number.

228178466 is a deficient number, since it is larger than the sum of its proper divisors (114993454).

228178466 is a wasteful number, since it uses less digits than its factorization.

228178466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301408.

The product of its digits is 258048, while the sum is 44.

The square root of 228178466 is about 15105.5773143564. The cubic root of 228178466 is about 611.0708289506.

The spelling of 228178466 in words is "two hundred twenty-eight million, one hundred seventy-eight thousand, four hundred sixty-six".