228509326 has 8 divisors (see below), whose sum is σ = 345380904. Its totient is φ = 113382360.

The previous prime is 228509297. The next prime is 228509363. The reversal of 228509326 is 623905822.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 435825 + ... + 436348.

It is an arithmetic number, because the mean of its divisors is an integer number (43172613).

Almost surely, 2^228509326 is an apocalyptic number.

228509326 is a deficient number, since it is larger than the sum of its proper divisors (116871578).

228509326 is a wasteful number, since it uses less digits than its factorization.

228509326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872306.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 228509326 is about 15116.5249313458. The cubic root of 228509326 is about 611.3660383050.

The spelling of 228509326 in words is "two hundred twenty-eight million, five hundred nine thousand, three hundred twenty-six".