228144770 has 16 divisors (see below), whose sum is σ = 469326528. Its totient is φ = 78221040.

The previous prime is 228144767. The next prime is 228144781. The reversal of 228144770 is 77441822.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 228144770.

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 7 ways as a sum of consecutive naturals, for example, 1629536 + ... + 1629675.

It is an arithmetic number, because the mean of its divisors is an integer number (29332908).

Almost surely, 2^228144770 is an apocalyptic number.

228144770 is an abundant number, since it is smaller than the sum of its proper divisors (241181758).

228144770 is a wasteful number, since it uses less digits than its factorization.

228144770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3259225.

The product of its (nonzero) digits is 25088, while the sum is 35.

The square root of 228144770 is about 15104.4619235509. The cubic root of 228144770 is about 611.0407477358.

The spelling of 228144770 in words is "two hundred twenty-eight million, one hundred forty-four thousand, seven hundred seventy".