229128798276 has 405 divisors, whose sum is σ = 727188098637. Its totient is φ = 62725440960.

The previous prime is 229128798271. The next prime is 229128798277. The reversal of 229128798276 is 672897821922.

The square root of 229128798276 is 478674.

It is a perfect power (a square), and thus also a powerful number.

229128798276 is a `hidden beast` number, since 2 + 291 + 2 + 8 + 79 + 8 + 276 = 666.

It can be written as a sum of positive squares in only one way, i.e., 120149583876 + 108979214400 = 346626^2 + 330120^2 .

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (229128798271) by changing a digit.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 1749074731 + ... + 1749074861.

Almost surely, 2^229128798276 is an apocalyptic number.

229128798276 is the 478674-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 229128798276

229128798276 is an abundant number, since it is smaller than the sum of its proper divisors (498059300361).

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

229128798276 is a wasteful number, since it uses less digits than its factorization.

229128798276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350 (or 172 counting only the distinct ones).

The product of its digits is 24385536, while the sum is 63.

The spelling of 229128798276 in words is "two hundred twenty-nine billion, one hundred twenty-eight million, seven hundred ninety-eight thousand, two hundred seventy-six".