229644428 has 24 divisors (see below), whose sum is σ = 433518288. Its totient is φ = 105811776.

The previous prime is 229644427. The next prime is 229644433. The reversal of 229644428 is 824446922.

It is a super-2 number, since 2×229644428² = 105473126622894368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (229644421) by changing a digit.

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, 30575 + ... + 37337.

It is an arithmetic number, because the mean of its divisors is an integer number (18063262).

Almost surely, 2^229644428 is an apocalyptic number.

It is an amenable number.

229644428 is a deficient number, since it is larger than the sum of its proper divisors (203873860).

229644428 is a wasteful number, since it uses less digits than its factorization.

229644428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7433 (or 7431 counting only the distinct ones).

The product of its digits is 221184, while the sum is 41.

The square root of 229644428 is about 15154.0234921291. The cubic root of 229644428 is about 612.3766708790.

The spelling of 229644428 in words is "two hundred twenty-nine million, six hundred forty-four thousand, four hundred twenty-eight".