228004745 has 8 divisors (see below), whose sum is σ = 274028616. Its totient is φ = 182121856.

The previous prime is 228004729. The next prime is 228004753. The reversal of 228004745 is 547400822.

228004745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1893376 + 226111369 = 1376^2 + 15037^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 228004745 - 2⁴ = 228004729 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31652 + ... + 38181.

It is an arithmetic number, because the mean of its divisors is an integer number (34253577).

Almost surely, 2^228004745 is an apocalyptic number.

It is an amenable number.

228004745 is a deficient number, since it is larger than the sum of its proper divisors (46023871).

228004745 is an equidigital number, since it uses as much as digits as its factorization.

228004745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70491.

The product of its (nonzero) digits is 17920, while the sum is 32.

The square root of 228004745 is about 15099.8259923749. The cubic root of 228004745 is about 610.9157123746.

The spelling of 228004745 in words is "two hundred twenty-eight million, four thousand, seven hundred forty-five".