228253280 has 24 divisors (see below), whose sum is σ = 539248752. Its totient is φ = 91301248.

The previous prime is 228253243. The next prime is 228253283. The reversal of 228253280 is 82352822.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228253283) 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, 713132 + ... + 713451.

It is an arithmetic number, because the mean of its divisors is an integer number (22468698).

Almost surely, 2^228253280 is an apocalyptic number.

228253280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228253280 is an abundant number, since it is smaller than the sum of its proper divisors (310995472).

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

228253280 is a wasteful number, since it uses less digits than its factorization.

228253280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1426598 (or 1426590 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 228253280 is about 15108.0534815045. The cubic root of 228253280 is about 611.1376065892.

The spelling of 228253280 in words is "two hundred twenty-eight million, two hundred fifty-three thousand, two hundred eighty".