229528870722 has 42 divisors (see below), whose sum is σ = 516244963203. Its totient is φ = 76503525732.

The previous prime is 229528870693. The next prime is 229528870733. The reversal of 229528870722 is 227078825922.

229528870722 is a `hidden beast` number, since 2 + 29 + 528 + 8 + 70 + 7 + 22 = 666.

It can be written as a sum of positive squares in only one way, i.e., 114764435361 + 114764435361 = 338769^2 + 338769^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=338769.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 18287253 + ... + 18299799.

Almost surely, 2^229528870722 is an apocalyptic number.

229528870722 is an abundant number, since it is smaller than the sum of its proper divisors (286716092481).

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

229528870722 is an frugal number, since it uses more digits than its factorization.

229528870722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25114 (or 12552 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 54.

The spelling of 229528870722 in words is "two hundred twenty-nine billion, five hundred twenty-eight million, eight hundred seventy thousand, seven hundred twenty-two".