228250047 has 4 divisors (see below), whose sum is σ = 304333400. Its totient is φ = 152166696.

The previous prime is 228250027. The next prime is 228250051. The reversal of 228250047 is 740052822.

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

It is not a de Polignac number, because 228250047 - 2⁷ = 228249919 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 228249996 and 228250023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228250027) 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, 38041672 + ... + 38041677.

It is an arithmetic number, because the mean of its divisors is an integer number (76083350).

Almost surely, 2^228250047 is an apocalyptic number.

228250047 is a deficient number, since it is larger than the sum of its proper divisors (76083353).

228250047 is an equidigital number, since it uses as much as digits as its factorization.

228250047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76083352.

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 228250047 is about 15107.9464852110. The cubic root of 228250047 is about 611.1347211729.

The spelling of 228250047 in words is "two hundred twenty-eight million, two hundred fifty thousand, forty-seven".