228881378 has 32 divisors (see below), whose sum is σ = 379753920. Its totient is φ = 102600000.

The previous prime is 228881363. The next prime is 228881413. The reversal of 228881378 is 873188822.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 911753 + ... + 912003.

It is an arithmetic number, because the mean of its divisors is an integer number (11867310).

Almost surely, 2^228881378 is an apocalyptic number.

228881378 is a deficient number, since it is larger than the sum of its proper divisors (150872542).

228881378 is a wasteful number, since it uses less digits than its factorization.

228881378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674.

The product of its digits is 344064, while the sum is 47.

The square root of 228881378 is about 15128.8260615290. The cubic root of 228881378 is about 611.6976609788.

The spelling of 228881378 in words is "two hundred twenty-eight million, eight hundred eighty-one thousand, three hundred seventy-eight".