228040296 has 64 divisors (see below), whose sum is σ = 625648320. Its totient is φ = 68689920.

The previous prime is 228040289. The next prime is 228040301. The reversal of 228040296 is 692040822.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43176 + ... + 48168.

It is an arithmetic number, because the mean of its divisors is an integer number (9775755).

Almost surely, 2^228040296 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228040296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (312824160).

228040296 is an abundant number, since it is smaller than the sum of its proper divisors (397608024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228040296 is a wasteful number, since it uses less digits than its factorization.

228040296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5186 (or 5182 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 228040296 is about 15101.0031454867. The cubic root of 228040296 is about 610.9474624972.

The spelling of 228040296 in words is "two hundred twenty-eight million, forty thousand, two hundred ninety-six".