247235226 has 64 divisors (see below), whose sum is σ = 579790848. Its totient is φ = 68827968.

The previous prime is 247235189. The next prime is 247235227. The reversal of 247235226 is 622532742.

247235226 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 2×247235226² = 122250513950542152, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (247235227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 289416 + ... + 290268.

It is an arithmetic number, because the mean of its divisors is an integer number (9059232).

Almost surely, 2^247235226 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 247235226, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289895424).

247235226 is an abundant number, since it is smaller than the sum of its proper divisors (332555622).

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

247235226 is a wasteful number, since it uses less digits than its factorization.

247235226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1035.

The product of its digits is 40320, while the sum is 33.

The square root of 247235226 is about 15723.7154006297. The cubic root of 247235226 is about 627.6296466035.

Adding to 247235226 its reverse (622532742), we get a palindrome (869767968).

The spelling of 247235226 in words is "two hundred forty-seven million, two hundred thirty-five thousand, two hundred twenty-six".