228062820 has 96 divisors (see below), whose sum is σ = 694528128. Its totient is φ = 55683072.

The previous prime is 228062819. The next prime is 228062843. The reversal of 228062820 is 28260822.

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

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 31 ways as a sum of consecutive naturals, for example, 34719 + ... + 40761.

It is an arithmetic number, because the mean of its divisors is an integer number (7234668).

Almost surely, 2^228062820 is an apocalyptic number.

228062820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228062820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (347264064).

228062820 is an abundant number, since it is smaller than the sum of its proper divisors (466465308).

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

228062820 is a wasteful number, since it uses less digits than its factorization.

228062820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6109 (or 6107 counting only the distinct ones).

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

The square root of 228062820 is about 15101.7489053421. The cubic root of 228062820 is about 610.9675766727.

The spelling of 228062820 in words is "two hundred twenty-eight million, sixty-two thousand, eight hundred twenty".