228458286 has 48 divisors (see below), whose sum is σ = 590579280. Its totient is φ = 65273040.

The previous prime is 228458267. The next prime is 228458303. The reversal of 228458286 is 682854822.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40525 + ... + 45816.

It is an arithmetic number, because the mean of its divisors is an integer number (12303735).

Almost surely, 2^228458286 is an apocalyptic number.

228458286 is an abundant number, since it is smaller than the sum of its proper divisors (362120994).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228458286 is a wasteful number, since it uses less digits than its factorization.

228458286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86366 (or 86353 counting only the distinct ones).

The product of its digits is 491520, while the sum is 45.

The square root of 228458286 is about 15114.8366183694. The cubic root of 228458286 is about 611.3205165362.

The spelling of 228458286 in words is "two hundred twenty-eight million, four hundred fifty-eight thousand, two hundred eighty-six".