228102842450 has 54 divisors (see below), whose sum is σ = 493591223151. Its totient is φ = 78198583680.

The previous prime is 228102842431. The next prime is 228102842477. The reversal of 228102842450 is 54248201822.

It can be written as a sum of positive squares in 5 ways, for example, as 8200932481 + 219901909969 = 90559^2 + 468937^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=337715.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 23635226 + ... + 23644874.

Almost surely, 2^228102842450 is an apocalyptic number.

228102842450 is an abundant number, since it is smaller than the sum of its proper divisors (265488380701).

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

228102842450 is an frugal number, since it uses more digits than its factorization.

228102842450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19324 (or 9663 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 38.

The spelling of 228102842450 in words is "two hundred twenty-eight billion, one hundred two million, eight hundred forty-two thousand, four hundred fifty".