247216080 has 40 divisors (see below), whose sum is σ = 766370592. Its totient is φ = 65924224.

The previous prime is 247216061. The next prime is 247216133. The reversal of 247216080 is 80612742.

247216080 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×247216080² = 122231580421132800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 514794 + ... + 515273.

Almost surely, 2^247216080 is an apocalyptic number.

247216080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

247216080 is an abundant number, since it is smaller than the sum of its proper divisors (519154512).

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

247216080 is a wasteful number, since it uses less digits than its factorization.

247216080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030083 (or 1030077 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 247216080 is about 15723.1065632718. The cubic root of 247216080 is about 627.6134448839.

The spelling of 247216080 in words is "two hundred forty-seven million, two hundred sixteen thousand, eighty".