228551678 has 4 divisors (see below), whose sum is σ = 342827520. Its totient is φ = 114275838.

The previous prime is 228551677. The next prime is 228551681. The reversal of 228551678 is 876155822.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 876155822 = 2 ⋅438077911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228551677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57137918 + ... + 57137921.

It is an arithmetic number, because the mean of its divisors is an integer number (85706880).

Almost surely, 2^228551678 is an apocalyptic number.

228551678 is a deficient number, since it is larger than the sum of its proper divisors (114275842).

228551678 is a wasteful number, since it uses less digits than its factorization.

228551678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114275841.

The product of its digits is 268800, while the sum is 44.

The square root of 228551678 is about 15117.9257175050. The cubic root of 228551678 is about 611.4038062384.

The spelling of 228551678 in words is "two hundred twenty-eight million, five hundred fifty-one thousand, six hundred seventy-eight".