228269465938 has 4 divisors (see below), whose sum is σ = 342404198910. Its totient is φ = 114134732968.

The previous prime is 228269465869. The next prime is 228269465939. The reversal of 228269465938 is 839564962822.

228269465938 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 839564962822 = 2 ⋅419782481411.

It can be written as a sum of positive squares in only one way, i.e., 202524300729 + 25745165209 = 450027^2 + 160453^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 228269465938.

It is not an unprimeable number, because it can be changed into a prime (228269465939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57067366483 + ... + 57067366486.

Almost surely, 2^228269465938 is an apocalyptic number.

228269465938 is a deficient number, since it is larger than the sum of its proper divisors (114134732972).

228269465938 is a wasteful number, since it uses less digits than its factorization.

228269465938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114134732971.

The product of its digits is 89579520, while the sum is 64.

The spelling of 228269465938 in words is "two hundred twenty-eight billion, two hundred sixty-nine million, four hundred sixty-five thousand, nine hundred thirty-eight".