247238080 has 28 divisors (see below), whose sum is σ = 588736440. Its totient is φ = 98895104.

The previous prime is 247238059. The next prime is 247238111. The reversal of 247238080 is 80832742.

247238080 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 2×247238080² = 122253336404172800, 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 3 ways as a sum of consecutive naturals, for example, 385990 + ... + 386629.

Almost surely, 2^247238080 is an apocalyptic number.

247238080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

247238080 is an abundant number, since it is smaller than the sum of its proper divisors (341498360).

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

247238080 is an equidigital number, since it uses as much as digits as its factorization.

247238080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772636 (or 772626 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 247238080 is about 15723.8061549995. The cubic root of 247238080 is about 627.6320616425.

The spelling of 247238080 in words is "two hundred forty-seven million, two hundred thirty-eight thousand, eighty".