228111424 has 56 divisors (see below), whose sum is σ = 474756480. Its totient is φ = 108539904.

The previous prime is 228111409. The next prime is 228111463. The reversal of 228111424 is 424111822.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 519397 + ... + 519835.

Almost surely, 2^228111424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228111424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237378240).

228111424 is an abundant number, since it is smaller than the sum of its proper divisors (246645056).

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

228111424 is a wasteful number, since it uses less digits than its factorization.

228111424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827 (or 817 counting only the distinct ones).

The product of its digits is 1024, while the sum is 25.

The square root of 228111424 is about 15103.3580372048. The cubic root of 228111424 is about 611.0109760583.

The spelling of 228111424 in words is "two hundred twenty-eight million, one hundred eleven thousand, four hundred twenty-four".