228138462 has 12 divisors (see below), whose sum is σ = 494300040. Its totient is φ = 76046148.

The previous prime is 228138451. The next prime is 228138479. The reversal of 228138462 is 264831822.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6337162 + ... + 6337197.

It is an arithmetic number, because the mean of its divisors is an integer number (41191670).

Almost surely, 2^228138462 is an apocalyptic number.

228138462 is an abundant number, since it is smaller than the sum of its proper divisors (266161578).

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

228138462 is a wasteful number, since it uses less digits than its factorization.

228138462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12674367 (or 12674364 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 228138462 is about 15104.2531096377. The cubic root of 228138462 is about 611.0351161062.

The spelling of 228138462 in words is "two hundred twenty-eight million, one hundred thirty-eight thousand, four hundred sixty-two".