228674140 has 36 divisors (see below), whose sum is σ = 510138216. Its totient is φ = 86086912.

The previous prime is 228674137. The next prime is 228674161. The reversal of 228674140 is 41476822.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 228674096 and 228674105.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14002 + ... + 25561.

It is an arithmetic number, because the mean of its divisors is an integer number (14170506).

Almost surely, 2^228674140 is an apocalyptic number.

228674140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228674140 is an abundant number, since it is smaller than the sum of its proper divisors (281464076).

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

228674140 is a wasteful number, since it uses less digits than its factorization.

228674140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39606 (or 39587 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 228674140 is about 15121.9754000593. The cubic root of 228674140 is about 611.5129870367.

The spelling of 228674140 in words is "two hundred twenty-eight million, six hundred seventy-four thousand, one hundred forty".