228301146 has 32 divisors (see below), whose sum is σ = 507928320. Its totient is φ = 76011552.

The previous prime is 228301141. The next prime is 228301159. The reversal of 228301146 is 641103822.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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

It is not an unprimeable number, because it can be changed into a prime (228301141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57646 + ... + 61478.

It is an arithmetic number, because the mean of its divisors is an integer number (15872760).

Almost surely, 2^228301146 is an apocalyptic number.

228301146 is an abundant number, since it is smaller than the sum of its proper divisors (279627174).

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

228301146 is a wasteful number, since it uses less digits than its factorization.

228301146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4947 (or 4941 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 228301146 is about 15109.6375204702. The cubic root of 228301146 is about 611.1803232709.

Adding to 228301146 its reverse (641103822), we get a palindrome (869404968).

The spelling of 228301146 in words is "two hundred twenty-eight million, three hundred one thousand, one hundred forty-six".