228142830 has 32 divisors (see below), whose sum is σ = 548440704. Its totient is φ = 60738336.

The previous prime is 228142829. The next prime is 228142843. The reversal of 228142830 is 38241822.

228142830 = 245² + 246² + ... + 887².

228142830 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 15 ways as a sum of consecutive naturals, for example, 13377 + ... + 25203.

It is an arithmetic number, because the mean of its divisors is an integer number (17138772).

Almost surely, 2^228142830 is an apocalyptic number.

228142830 is an abundant number, since it is smaller than the sum of its proper divisors (320297874).

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

228142830 is a wasteful number, since it uses less digits than its factorization.

228142830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12480.

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 228142830 is about 15104.3977039801. The cubic root of 228142830 is about 611.0390157619.

The spelling of 228142830 in words is "two hundred twenty-eight million, one hundred forty-two thousand, eight hundred thirty".