228460505 has 32 divisors (see below), whose sum is σ = 345295104. Its totient is φ = 141232896.

The previous prime is 228460471. The next prime is 228460543. The reversal of 228460505 is 505064822.

It is not a de Polignac number, because 228460505 - 2⁸ = 228460249 is a prime.

It is a super-3 number, since 3×228460505³ (a number of 26 digits) contains 333 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13727 + ... + 25403.

It is an arithmetic number, because the mean of its divisors is an integer number (10790472).

Almost surely, 2^228460505 is an apocalyptic number.

It is an amenable number.

228460505 is a deficient number, since it is larger than the sum of its proper divisors (116834599).

228460505 is a wasteful number, since it uses less digits than its factorization.

228460505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11745.

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 228460505 is about 15114.9100228880. The cubic root of 228460505 is about 611.3224957682.

The spelling of 228460505 in words is "two hundred twenty-eight million, four hundred sixty thousand, five hundred five".