228157296 has 20 divisors (see below), whose sum is σ = 589406472. Its totient is φ = 76052416.

The previous prime is 228157291. The next prime is 228157327. The reversal of 228157296 is 692751822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228157291) 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, 2376591 + ... + 2376686.

Almost surely, 2^228157296 is an apocalyptic number.

It is an amenable number.

228157296 is an abundant number, since it is smaller than the sum of its proper divisors (361249176).

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

228157296 is a wasteful number, since it uses less digits than its factorization.

228157296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4753288 (or 4753282 counting only the distinct ones).

The product of its digits is 120960, while the sum is 42.

The square root of 228157296 is about 15104.8765635473. The cubic root of 228157296 is about 611.0519303376.

It can be divided in two parts, 2281572 and 96, that multiplied together give a palindrome (219030912).

The spelling of 228157296 in words is "two hundred twenty-eight million, one hundred fifty-seven thousand, two hundred ninety-six".