228728854 has 4 divisors (see below), whose sum is σ = 343093284. Its totient is φ = 114364426.

The previous prime is 228728839. The next prime is 228728861. The reversal of 228728854 is 458827822.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 458827822 = 2 ⋅229413911.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57182212 + ... + 57182215.

It is an arithmetic number, because the mean of its divisors is an integer number (85773321).

Almost surely, 2^228728854 is an apocalyptic number.

228728854 is a deficient number, since it is larger than the sum of its proper divisors (114364430).

228728854 is a wasteful number, since it uses less digits than its factorization.

228728854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114364429.

The product of its digits is 573440, while the sum is 46.

The square root of 228728854 is about 15123.7843809015. The cubic root of 228728854 is about 611.5617546170.

The spelling of 228728854 in words is "two hundred twenty-eight million, seven hundred twenty-eight thousand, eight hundred fifty-four".