247842384 has 60 divisors (see below), whose sum is σ = 675778176. Its totient is φ = 78260544.

The previous prime is 247842367. The next prime is 247842389. The reversal of 247842384 is 483248742.

247842384 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×247842384² = 122851694613606912, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247842389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10177 + ... + 24479.

Almost surely, 2^247842384 is an apocalyptic number.

247842384 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 247842384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (337889088).

247842384 is an abundant number, since it is smaller than the sum of its proper divisors (427935792).

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

247842384 is a wasteful number, since it uses less digits than its factorization.

247842384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14352 (or 14327 counting only the distinct ones).

The product of its digits is 344064, while the sum is 42.

The square root of 247842384 is about 15743.0106396458. The cubic root of 247842384 is about 628.1430023107.

The spelling of 247842384 in words is "two hundred forty-seven million, eight hundred forty-two thousand, three hundred eighty-four".