228470347 has 4 divisors (see below), whose sum is σ = 261108976. Its totient is φ = 195831720.

The previous prime is 228470311. The next prime is 228470351. The reversal of 228470347 is 743074822.

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

It is not a de Polignac number, because 228470347 - 2⁷ = 228470219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228470357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16319304 + ... + 16319317.

It is an arithmetic number, because the mean of its divisors is an integer number (65277244).

Almost surely, 2^228470347 is an apocalyptic number.

228470347 is a deficient number, since it is larger than the sum of its proper divisors (32638629).

228470347 is an equidigital number, since it uses as much as digits as its factorization.

228470347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32638628.

The product of its (nonzero) digits is 75264, while the sum is 37.

The square root of 228470347 is about 15115.2355919450. The cubic root of 228470347 is about 611.3312741631.

The spelling of 228470347 in words is "two hundred twenty-eight million, four hundred seventy thousand, three hundred forty-seven".