228423152 has 20 divisors (see below), whose sum is σ = 468603936. Its totient is φ = 107493120.

The previous prime is 228423133. The next prime is 228423191. The reversal of 228423152 is 251324822.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 419624 + ... + 420167.

Almost surely, 2^228423152 is an apocalyptic number.

It is an amenable number.

228423152 is an abundant number, since it is smaller than the sum of its proper divisors (240180784).

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

228423152 is a wasteful number, since it uses less digits than its factorization.

228423152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839816 (or 839810 counting only the distinct ones).

The product of its digits is 7680, while the sum is 29.

The square root of 228423152 is about 15113.6743381615. The cubic root of 228423152 is about 611.2891771372.

Adding to 228423152 its reverse (251324822), we get a palindrome (479747974).

The spelling of 228423152 in words is "two hundred twenty-eight million, four hundred twenty-three thousand, one hundred fifty-two".