228494 has 16 divisors (see below), whose sum is σ = 412800. Its totient is φ = 92664.

The previous prime is 228479. The next prime is 228509. The reversal of 228494 is 494822.

228494 = T₂₅₂ + T₂₅₃ + ... + T₂₅₈.

It is an interprime number because it is at equal distance from previous prime (228479) and next prime (228509).

It is a super-3 number, since 3×228494³ = 35788677987533352, which contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164 + ... + 695.

It is an arithmetic number, because the mean of its divisors is an integer number (25800).

2²²⁸⁴⁹⁴ is an apocalyptic number.

228494 is a deficient number, since it is larger than the sum of its proper divisors (184306).

228494 is a wasteful number, since it uses less digits than its factorization.

228494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887.

The product of its digits is 4608, while the sum is 29.

The square root of 228494 is about 478.0104601366. The cubic root of 228494 is about 61.1352370000.

The spelling of 228494 in words is "two hundred twenty-eight thousand, four hundred ninety-four".