228483278 has 4 divisors (see below), whose sum is σ = 342724920. Its totient is φ = 114241638.

The previous prime is 228483271. The next prime is 228483289. The reversal of 228483278 is 872384822.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 872384822 = 2 ⋅436192411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228483271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57120818 + ... + 57120821.

It is an arithmetic number, because the mean of its divisors is an integer number (85681230).

Almost surely, 2^228483278 is an apocalyptic number.

228483278 is a deficient number, since it is larger than the sum of its proper divisors (114241642).

228483278 is a wasteful number, since it uses less digits than its factorization.

228483278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114241641.

The product of its digits is 344064, while the sum is 44.

The square root of 228483278 is about 15115.6633331124. The cubic root of 228483278 is about 611.3428073528.

The spelling of 228483278 in words is "two hundred twenty-eight million, four hundred eighty-three thousand, two hundred seventy-eight".