228734424 has 24 divisors (see below), whose sum is σ = 619489260. Its totient is φ = 76244784.

The previous prime is 228734413. The next prime is 228734431. The reversal of 228734424 is 424437822.

228734424 is a `hidden beast` number, since 228 + 7 + 3 + 4 + 424 = 666.

228734424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×228734424² = 104638873445223552, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1588362 + ... + 1588505.

Almost surely, 2^228734424 is an apocalyptic number.

228734424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

228734424 is an abundant number, since it is smaller than the sum of its proper divisors (390754836).

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

228734424 is a wasteful number, since it uses less digits than its factorization.

228734424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3176879 (or 3176872 counting only the distinct ones).

The product of its digits is 86016, while the sum is 36.

The square root of 228734424 is about 15123.9685268120. The cubic root of 228734424 is about 611.5667188228.

The spelling of 228734424 in words is "two hundred twenty-eight million, seven hundred thirty-four thousand, four hundred twenty-four".