247801230 has 144 divisors (see below), whose sum is σ = 706099680. Its totient is φ = 60213888.

The previous prime is 247801223. The next prime is 247801243. The reversal of 247801230 is 32108742.

247801230 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 2×247801230² = 122810899179025800, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 247801194 and 247801203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 942079 + ... + 942341.

It is an arithmetic number, because the mean of its divisors is an integer number (4903470).

Almost surely, 2^247801230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 247801230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (353049840).

247801230 is an abundant number, since it is smaller than the sum of its proper divisors (458298450).

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

247801230 is a wasteful number, since it uses less digits than its factorization.

247801230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343 (or 321 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 247801230 is about 15741.7035291610. The cubic root of 247801230 is about 628.1082328635.

Adding to 247801230 its reverse (32108742), we get a palindrome (279909972).

The spelling of 247801230 in words is "two hundred forty-seven million, eight hundred one thousand, two hundred thirty".