247872384 has 96 divisors (see below), whose sum is σ = 720548400. Its totient is φ = 81782784.

The previous prime is 247872379. The next prime is 247872413. The reversal of 247872384 is 483278742.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×247872384² = 122881437499686912, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 117612 + ... + 119700.

Almost surely, 2^247872384 is an apocalyptic number.

247872384 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 247872384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (360274200).

247872384 is an abundant number, since it is smaller than the sum of its proper divisors (472676016).

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

247872384 is a wasteful number, since it uses less digits than its factorization.

247872384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2212 (or 2197 counting only the distinct ones).

The product of its digits is 602112, while the sum is 45.

The square root of 247872384 is about 15743.9634145916. The cubic root of 247872384 is about 628.1683457427.

The spelling of 247872384 in words is "two hundred forty-seven million, eight hundred seventy-two thousand, three hundred eighty-four".