228880845 has 48 divisors (see below), whose sum is σ = 406224000. Its totient is φ = 119180160.

The previous prime is 228880829. The next prime is 228880867. The reversal of 228880845 is 548088822.

It is not a de Polignac number, because 228880845 - 2⁴ = 228880829 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 228880845.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 546046 + ... + 546464.

It is an arithmetic number, because the mean of its divisors is an integer number (8463000).

Almost surely, 2^228880845 is an apocalyptic number.

It is an amenable number.

228880845 is a deficient number, since it is larger than the sum of its proper divisors (177343155).

228880845 is a wasteful number, since it uses less digits than its factorization.

228880845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690 (or 687 counting only the distinct ones).

The product of its (nonzero) digits is 327680, while the sum is 45.

The square root of 228880845 is about 15128.8084461401. The cubic root of 228880845 is about 611.6971861548.

The spelling of 228880845 in words is "two hundred twenty-eight million, eight hundred eighty thousand, eight hundred forty-five".