228788396 has 12 divisors (see below), whose sum is σ = 400487640. Its totient is φ = 114363360.

The previous prime is 228788393. The next prime is 228788419. The reversal of 228788396 is 693887822.

It is not an unprimeable number, because it can be changed into a prime (228788393) 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, 20240 + ... + 29448.

It is an arithmetic number, because the mean of its divisors is an integer number (33373970).

Almost surely, 2^228788396 is an apocalyptic number.

It is an amenable number.

228788396 is a deficient number, since it is larger than the sum of its proper divisors (171699244).

228788396 is a wasteful number, since it uses less digits than its factorization.

228788396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15424 (or 15422 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 53.

The square root of 228788396 is about 15125.7527415993. The cubic root of 228788396 is about 611.6148166453.

The spelling of 228788396 in words is "two hundred twenty-eight million, seven hundred eighty-eight thousand, three hundred ninety-six".