228733632 has 70 divisors (see below), whose sum is σ = 678053508. Its totient is φ = 76242816.

The previous prime is 228733627. The next prime is 228733679. The reversal of 228733632 is 236337822.

It is a happy number.

228733632 is a `hidden beast` number, since 228 + 73 + 363 + 2 = 666.

228733632 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×228733632² = 104638148815822848, which contains 22 as substring.

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

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 9 ways as a sum of consecutive naturals, for example, 16878 + ... + 27245.

Almost surely, 2^228733632 is an apocalyptic number.

It is an amenable number.

228733632 is an abundant number, since it is smaller than the sum of its proper divisors (449319876).

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

228733632 is an equidigital number, since it uses as much as digits as its factorization.

228733632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44147 (or 44128 counting only the distinct ones).

The product of its digits is 72576, while the sum is 36.

The square root of 228733632 is about 15123.9423431855. The cubic root of 228733632 is about 611.5660129658.

The spelling of 228733632 in words is "two hundred twenty-eight million, seven hundred thirty-three thousand, six hundred thirty-two".