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228474 = 2334231
BaseRepresentation
bin110111110001111010
3102121102000
4313301322
524302344
64521430
71641051
oct676172
9377360
10228474
11146724
12b0276
137ccbc
145d398
1547a69
hex37c7a

228474 has 16 divisors (see below), whose sum is σ = 507840. Its totient is φ = 76140.

The previous prime is 228469. The next prime is 228479. The reversal of 228474 is 474822.

It is an interprime number because it is at equal distance from previous prime (228469) and next prime (228479).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (228479) by changing a digit.

228474 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2062 + ... + 2169.

It is an arithmetic number, because the mean of its divisors is an integer number (31740).

2228474 is an apocalyptic number.

228474 is an abundant number, since it is smaller than the sum of its proper divisors (279366).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228474 is a wasteful number, since it uses less digits than its factorization.

228474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4242 (or 4236 counting only the distinct ones).

The product of its digits is 3584, while the sum is 27.

The square root of 228474 is about 477.9895396345. The cubic root of 228474 is about 61.1334532327.

The spelling of 228474 in words is "two hundred twenty-eight thousand, four hundred seventy-four".