228143142 has 40 divisors (see below), whose sum is σ = 512683776. Its totient is φ = 75828528.

The previous prime is 228143129. The next prime is 228143189. The reversal of 228143142 is 241341822.

228143142 is a `hidden beast` number, since 228 + 1 + 431 + 4 + 2 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 60208 + ... + 63884.

Almost surely, 2^228143142 is an apocalyptic number.

228143142 is an abundant number, since it is smaller than the sum of its proper divisors (284540634).

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

228143142 is a wasteful number, since it uses less digits than its factorization.

228143142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4074 (or 4065 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 228143142 is about 15104.4080320945. The cubic root of 228143142 is about 611.0392943068.

Adding to 228143142 its reverse (241341822), we get a palindrome (469484964).

The spelling of 228143142 in words is "two hundred twenty-eight million, one hundred forty-three thousand, one hundred forty-two".