228729326 has 8 divisors (see below), whose sum is σ = 392107440. Its totient is φ = 98026848.

The previous prime is 228729323. The next prime is 228729329. The reversal of 228729326 is 623927822.

228729326 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (228729323) and next prime (228729329).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228729323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8168891 + ... + 8168918.

It is an arithmetic number, because the mean of its divisors is an integer number (49013430).

Almost surely, 2^228729326 is an apocalyptic number.

228729326 is a deficient number, since it is larger than the sum of its proper divisors (163378114).

228729326 is a wasteful number, since it uses less digits than its factorization.

228729326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16337818.

The product of its digits is 145152, while the sum is 41.

The square root of 228729326 is about 15123.7999854534. The cubic root of 228729326 is about 611.5621752853.

It can be divided in two parts, 2287 and 29326, that added together give a palindrome (31613).

The spelling of 228729326 in words is "two hundred twenty-eight million, seven hundred twenty-nine thousand, three hundred twenty-six".