228143748 has 24 divisors (see below), whose sum is σ = 608383552. Its totient is φ = 65183904.

The previous prime is 228143717. The next prime is 228143753. The reversal of 228143748 is 847341822.

228143748 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1357915 + ... + 1358082.

Almost surely, 2^228143748 is an apocalyptic number.

228143748 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

228143748 is an abundant number, since it is smaller than the sum of its proper divisors (380239804).

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

228143748 is a wasteful number, since it uses less digits than its factorization.

228143748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2716011 (or 2716009 counting only the distinct ones).

The product of its digits is 86016, while the sum is 39.

The square root of 228143748 is about 15104.4280924502. The cubic root of 228143748 is about 611.0398353260.

It can be divided in two parts, 22814 and 3748, that added together give a palindrome (26562).

The spelling of 228143748 in words is "two hundred twenty-eight million, one hundred forty-three thousand, seven hundred forty-eight".