247227228 has 96 divisors (see below), whose sum is σ = 661248000. Its totient is φ = 80843184.

The previous prime is 247227193. The next prime is 247227241. The reversal of 247227228 is 822722742.

It is a super-2 number, since 2×247227228² = 122242604529127968, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 247227192 and 247227201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 515893 + ... + 516371.

It is an arithmetic number, because the mean of its divisors is an integer number (6888000).

Almost surely, 2^247227228 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 247227228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (330624000).

247227228 is an abundant number, since it is smaller than the sum of its proper divisors (414020772).

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

247227228 is an equidigital number, since it uses as much as digits as its factorization.

247227228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563 (or 543 counting only the distinct ones).

The product of its digits is 50176, while the sum is 36.

The square root of 247227228 is about 15723.4610693702. The cubic root of 247227228 is about 627.6228786413.

It can be divided in two parts, 247 and 227228, that added together give a triangular number (227475 = T₆₇₄).

The spelling of 247227228 in words is "two hundred forty-seven million, two hundred twenty-seven thousand, two hundred twenty-eight".