228657459 has 4 divisors (see below), whose sum is σ = 304876616. Its totient is φ = 152438304.

The previous prime is 228657433. The next prime is 228657461. The reversal of 228657459 is 954756822.

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

It is not a de Polignac number, because 228657459 - 2⁸ = 228657203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228657409) 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, 38109574 + ... + 38109579.

It is an arithmetic number, because the mean of its divisors is an integer number (76219154).

Almost surely, 2^228657459 is an apocalyptic number.

228657459 is a deficient number, since it is larger than the sum of its proper divisors (76219157).

228657459 is an equidigital number, since it uses as much as digits as its factorization.

228657459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76219156.

The product of its digits is 1209600, while the sum is 48.

The square root of 228657459 is about 15121.4238416890. The cubic root of 228657459 is about 611.4981174116.

The spelling of 228657459 in words is "two hundred twenty-eight million, six hundred fifty-seven thousand, four hundred fifty-nine".