229821633 has 12 divisors (see below), whose sum is σ = 332276308. Its totient is φ = 153070560.

The previous prime is 229821629. The next prime is 229821649. The reversal of 229821633 is 336128922.

229821633 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 110313009 + 119508624 = 10503^2 + 10932^2 .

It is not a de Polignac number, because 229821633 - 2² = 229821629 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (229821133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1378 + ... + 21483.

Almost surely, 2^229821633 is an apocalyptic number.

It is an amenable number.

229821633 is a deficient number, since it is larger than the sum of its proper divisors (102454675).

229821633 is a wasteful number, since it uses less digits than its factorization.

229821633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23984 (or 23981 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 229821633 is about 15159.8691617045. The cubic root of 229821633 is about 612.5341437582.

The spelling of 229821633 in words is "two hundred twenty-nine million, eight hundred twenty-one thousand, six hundred thirty-three".