228188294 has 8 divisors (see below), whose sum is σ = 342351120. Its totient is φ = 114071256.

The previous prime is 228188293. The next prime is 228188333. The reversal of 228188294 is 492881822.

It is a happy number.

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

It is a super-3 number, since 3×228188294³ (a number of 26 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228188293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6887 + ... + 22445.

It is an arithmetic number, because the mean of its divisors is an integer number (42793890).

Almost surely, 2^228188294 is an apocalyptic number.

228188294 is a deficient number, since it is larger than the sum of its proper divisors (114162826).

228188294 is a wasteful number, since it uses less digits than its factorization.

228188294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22894.

The product of its digits is 147456, while the sum is 44.

The square root of 228188294 is about 15105.9026211610. The cubic root of 228188294 is about 611.0796020803.

The spelling of 228188294 in words is "two hundred twenty-eight million, one hundred eighty-eight thousand, two hundred ninety-four".