247860480 has 144 divisors (see below), whose sum is σ = 904788864. Its totient is φ = 56647680.

The previous prime is 247860479. The next prime is 247860517. The reversal of 247860480 is 84068742.

It is a super-2 number, since 2×247860480² = 122869635091660800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22270 + ... + 31490.

It is an arithmetic number, because the mean of its divisors is an integer number (6283256).

Almost surely, 2^247860480 is an apocalyptic number.

247860480 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 247860480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (452394432).

247860480 is an abundant number, since it is smaller than the sum of its proper divisors (656928384).

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

247860480 is an equidigital number, since it uses as much as digits as its factorization.

247860480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9252 (or 9238 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 39.

The square root of 247860480 is about 15743.5853603936. The cubic root of 247860480 is about 628.1582897136.

The spelling of 247860480 in words is "two hundred forty-seven million, eight hundred sixty thousand, four hundred eighty".