247489120 has 96 divisors (see below), whose sum is σ = 618782976. Its totient is φ = 93388800.

The previous prime is 247489063. The next prime is 247489127. The reversal of 247489120 is 21984742.

It is a super-2 number, since 2×247489120² = 122501729036748800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 247489120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247489127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202752 + ... + 203968.

It is an arithmetic number, because the mean of its divisors is an integer number (6445656).

Almost surely, 2^247489120 is an apocalyptic number.

247489120 is a gapful number since it is divisible by the number (20) 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 247489120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (309391488).

247489120 is an abundant number, since it is smaller than the sum of its proper divisors (371293856).

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

247489120 is a wasteful number, since it uses less digits than its factorization.

247489120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1304 (or 1296 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 247489120 is about 15731.7869296530. The cubic root of 247489120 is about 627.8444176233.

The spelling of 247489120 in words is "two hundred forty-seven million, four hundred eighty-nine thousand, one hundred twenty".