228757530 has 32 divisors (see below), whose sum is σ = 577915200. Its totient is φ = 57791232.

The previous prime is 228757523. The next prime is 228757553. The reversal of 228757530 is 35757822.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 200095 + ... + 201234.

It is an arithmetic number, because the mean of its divisors is an integer number (18059850).

Almost surely, 2^228757530 is an apocalyptic number.

228757530 is an abundant number, since it is smaller than the sum of its proper divisors (349157670).

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

228757530 is a wasteful number, since it uses less digits than its factorization.

228757530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401358.

The product of its (nonzero) digits is 117600, while the sum is 39.

The square root of 228757530 is about 15124.7323943268. The cubic root of 228757530 is about 611.5873109497.

The spelling of 228757530 in words is "two hundred twenty-eight million, seven hundred fifty-seven thousand, five hundred thirty".