228013329 has 8 divisors (see below), whose sum is σ = 317236032. Its totient is φ = 145399760.

The previous prime is 228013307. The next prime is 228013343. The reversal of 228013329 is 923310822.

It is a happy number.

228013329 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 228013329 - 2⁵ = 228013297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 228013296 and 228013305.

It is not an unprimeable number, because it can be changed into a prime (228015329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1652202 + ... + 1652339.

It is an arithmetic number, because the mean of its divisors is an integer number (39654504).

Almost surely, 2^228013329 is an apocalyptic number.

It is an amenable number.

228013329 is a deficient number, since it is larger than the sum of its proper divisors (89222703).

228013329 is a wasteful number, since it uses less digits than its factorization.

228013329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3304567.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 228013329 is about 15100.1102313857. The cubic root of 228013329 is about 610.9233789324.

The spelling of 228013329 in words is "two hundred twenty-eight million, thirteen thousand, three hundred twenty-nine".