228305516450 has 54 divisors (see below), whose sum is σ = 466838132817. Its totient is φ = 83006673200.

The previous prime is 228305516393. The next prime is 228305516479. The reversal of 228305516450 is 54615503822.

It can be written as a sum of positive squares in 2 ways, for example, as 223739406121 + 4566110329 = 473011^2 + 67573^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=337865.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 228305516398 and 228305516407.

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 26 ways as a sum of consecutive naturals, for example, 37162079 + ... + 37168221.

Almost surely, 2^228305516450 is an apocalyptic number.

228305516450 is an abundant number, since it is smaller than the sum of its proper divisors (238532616367).

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

228305516450 is an frugal number, since it uses more digits than its factorization.

228305516450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12320 (or 6161 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 41.

The spelling of 228305516450 in words is "two hundred twenty-eight billion, three hundred five million, five hundred sixteen thousand, four hundred fifty".