228091552 has 96 divisors (see below), whose sum is σ = 521579520. Its totient is φ = 97320960.

The previous prime is 228091541. The next prime is 228091597. The reversal of 228091552 is 255190822.

It is a happy number.

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, 296224 + ... + 296992.

It is an arithmetic number, because the mean of its divisors is an integer number (5433120).

Almost surely, 2^228091552 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 228091552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260789760).

228091552 is an abundant number, since it is smaller than the sum of its proper divisors (293487968).

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

228091552 is a wasteful number, since it uses less digits than its factorization.

228091552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846 (or 838 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 228091552 is about 15102.7001559324. The cubic root of 228091552 is about 610.9932327372.

The spelling of 228091552 in words is "two hundred twenty-eight million, ninety-one thousand, five hundred fifty-two".