228078307 has 8 divisors (see below), whose sum is σ = 241717392. Its totient is φ = 214464000.

The previous prime is 228078283. The next prime is 228078317. The reversal of 228078307 is 703870822.

228078307 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 228078307 - 2¹¹ = 228076259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228078317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14832 + ... + 26002.

It is an arithmetic number, because the mean of its divisors is an integer number (30214674).

Almost surely, 2^228078307 is an apocalyptic number.

228078307 is a deficient number, since it is larger than the sum of its proper divisors (13639085).

228078307 is a wasteful number, since it uses less digits than its factorization.

228078307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12389.

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 228078307 is about 15102.2616518189. The cubic root of 228078307 is about 610.9814059628.

The spelling of 228078307 in words is "two hundred twenty-eight million, seventy-eight thousand, three hundred seven".