247028880 has 320 divisors, whose sum is σ = 942796800. Its totient is φ = 52254720.

The previous prime is 247028879. The next prime is 247028893. The reversal of 247028880 is 88820742.

247028880 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 2×247028880² = 122046535108108800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2266266 + ... + 2266374.

It is an arithmetic number, because the mean of its divisors is an integer number (2946240).

Almost surely, 2^247028880 is an apocalyptic number.

247028880 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 247028880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (471398400).

247028880 is an abundant number, since it is smaller than the sum of its proper divisors (695767920).

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

247028880 is a wasteful number, since it uses less digits than its factorization.

247028880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222 (or 216 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 39.

The square root of 247028880 is about 15717.1524138439. The cubic root of 247028880 is about 627.4549884910.

The spelling of 247028880 in words is "two hundred forty-seven million, twenty-eight thousand, eight hundred eighty".