228909384 has 96 divisors (see below), whose sum is σ = 678974400. Its totient is φ = 69095040.

The previous prime is 228909377. The next prime is 228909391. The reversal of 228909384 is 483909822.

It is an interprime number because it is at equal distance from previous prime (228909377) and next prime (228909391).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 307717 + ... + 308459.

It is an arithmetic number, because the mean of its divisors is an integer number (7072650).

Almost surely, 2^228909384 is an apocalyptic number.

228909384 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228909384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (339487200).

228909384 is an abundant number, since it is smaller than the sum of its proper divisors (450065016).

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

228909384 is a wasteful number, since it uses less digits than its factorization.

228909384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155 (or 1148 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 228909384 is about 15129.7516172606. The cubic root of 228909384 is about 611.7226091363.

The spelling of 228909384 in words is "two hundred twenty-eight million, nine hundred nine thousand, three hundred eighty-four".