228373085 has 4 divisors (see below), whose sum is σ = 274047708. Its totient is φ = 182698464.

The previous prime is 228373073. The next prime is 228373091. The reversal of 228373085 is 580373822.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 86620249 + 141752836 = 9307^2 + 11906^2 .

It is a cyclic number.

It is not a de Polignac number, because 228373085 - 2⁴ = 228373069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22837304 + ... + 22837313.

It is an arithmetic number, because the mean of its divisors is an integer number (68511927).

Almost surely, 2^228373085 is an apocalyptic number.

It is an amenable number.

228373085 is a deficient number, since it is larger than the sum of its proper divisors (45674623).

228373085 is an equidigital number, since it uses as much as digits as its factorization.

228373085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45674622.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 228373085 is about 15112.0178996718. The cubic root of 228373085 is about 611.2445120039.

The spelling of 228373085 in words is "two hundred twenty-eight million, three hundred seventy-three thousand, eighty-five".