228578544 has 40 divisors (see below), whose sum is σ = 656106320. Its totient is φ = 76192704.

The previous prime is 228578533. The next prime is 228578561. The reversal of 228578544 is 445875822.

228578544 is a `hidden beast` number, since 2 + 28 + 578 + 54 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 228578544.

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 7 ways as a sum of consecutive naturals, for example, 264127 + ... + 264990.

It is an arithmetic number, because the mean of its divisors is an integer number (16402658).

Almost surely, 2^228578544 is an apocalyptic number.

228578544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

228578544 is an abundant number, since it is smaller than the sum of its proper divisors (427527776).

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

228578544 is a wasteful number, since it uses less digits than its factorization.

228578544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529134 (or 529122 counting only the distinct ones).

The product of its digits is 716800, while the sum is 45.

The square root of 228578544 is about 15118.8142392186. The cubic root of 228578544 is about 611.4277619162.

The spelling of 228578544 in words is "two hundred twenty-eight million, five hundred seventy-eight thousand, five hundred forty-four".