228116457 has 24 divisors (see below), whose sum is σ = 334084608. Its totient is φ = 149978400.

The previous prime is 228116431. The next prime is 228116477. The reversal of 228116457 is 754611822.

228116457 is a `hidden beast` number, since 2 + 2 + 8 + 1 + 1 + 645 + 7 = 666.

It is not a de Polignac number, because 228116457 - 2¹⁵ = 228083689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228116417) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 224683 + ... + 225695.

It is an arithmetic number, because the mean of its divisors is an integer number (13920192).

Almost surely, 2^228116457 is an apocalyptic number.

It is an amenable number.

228116457 is a deficient number, since it is larger than the sum of its proper divisors (105968151).

228116457 is a wasteful number, since it uses less digits than its factorization.

228116457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341 (or 1338 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 228116457 is about 15103.5246548612. The cubic root of 228116457 is about 611.0154697622.

The spelling of 228116457 in words is "two hundred twenty-eight million, one hundred sixteen thousand, four hundred fifty-seven".