228005175840 has 96 divisors (see below), whose sum is σ = 773463733056. Its totient is φ = 56124349440.

The previous prime is 228005175821. The next prime is 228005175841. The reversal of 228005175840 is 48571500822.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 228005175792 and 228005175801.

It is not an unprimeable number, because it can be changed into a prime (228005175841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18263406 + ... + 18275885.

It is an arithmetic number, because the mean of its divisors is an integer number (8056913886).

Almost surely, 2^228005175840 is an apocalyptic number.

228005175840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228005175840 is an abundant number, since it is smaller than the sum of its proper divisors (545458557216).

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

228005175840 is a wasteful number, since it uses less digits than its factorization.

228005175840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36539322 (or 36539314 counting only the distinct ones).

The product of its (nonzero) digits is 179200, while the sum is 42.

The spelling of 228005175840 in words is "two hundred twenty-eight billion, five million, one hundred seventy-five thousand, eight hundred forty".