228430221740 has 36 divisors (see below), whose sum is σ = 558022401216. Its totient is φ = 78318932832.

The previous prime is 228430221737. The next prime is 228430221751. The reversal of 228430221740 is 47122034822.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 228430221740.

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 11 ways as a sum of consecutive naturals, for example, 116545052 + ... + 116547011.

It is an arithmetic number, because the mean of its divisors is an integer number (15500622256).

Almost surely, 2^228430221740 is an apocalyptic number.

228430221740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228430221740 is an abundant number, since it is smaller than the sum of its proper divisors (329592179476).

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

228430221740 is a wasteful number, since it uses less digits than its factorization.

228430221740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233092086 (or 233092077 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 35.

The spelling of 228430221740 in words is "two hundred twenty-eight billion, four hundred thirty million, two hundred twenty-one thousand, seven hundred forty".