247841228 has 12 divisors (see below), whose sum is σ = 444301032. Its totient is φ = 120898080.

The previous prime is 247841179. The next prime is 247841287. The reversal of 247841228 is 822148742.

247841228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×247841228² = 122850548593095968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 247841191 and 247841200.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 755450 + ... + 755777.

It is an arithmetic number, because the mean of its divisors is an integer number (37025086).

Almost surely, 2^247841228 is an apocalyptic number.

It is an amenable number.

247841228 is a deficient number, since it is larger than the sum of its proper divisors (196459804).

247841228 is a wasteful number, since it uses less digits than its factorization.

247841228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1511272 (or 1511270 counting only the distinct ones).

The product of its digits is 57344, while the sum is 38.

The square root of 247841228 is about 15742.9739248974. The cubic root of 247841228 is about 628.1420257029.

The spelling of 247841228 in words is "two hundred forty-seven million, eight hundred forty-one thousand, two hundred twenty-eight".