228138374 has 24 divisors (see below), whose sum is σ = 355745880. Its totient is φ = 109714176.

The previous prime is 228138343. The next prime is 228138401. The reversal of 228138374 is 473831822.

228138374 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 265157 + ... + 266015.

It is an arithmetic number, because the mean of its divisors is an integer number (14822745).

Almost surely, 2^228138374 is an apocalyptic number.

228138374 is a deficient number, since it is larger than the sum of its proper divisors (127607506).

228138374 is an equidigital number, since it uses as much as digits as its factorization.

228138374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1032 (or 995 counting only the distinct ones).

The product of its digits is 64512, while the sum is 38.

The square root of 228138374 is about 15104.2501965506. The cubic root of 228138374 is about 611.0350375412.

The spelling of 228138374 in words is "two hundred twenty-eight million, one hundred thirty-eight thousand, three hundred seventy-four".