247813480 has 16 divisors (see below), whose sum is σ = 557580420. Its totient is φ = 99125376.

The previous prime is 247813463. The next prime is 247813481. The reversal of 247813480 is 84318742.

247813480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 247810564 + 2916 = 15742^2 + 54^2 .

It is a super-2 number, since 2×247813480² = 122823041739420800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (247813481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3097629 + ... + 3097708.

Almost surely, 2^247813480 is an apocalyptic number.

247813480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

247813480 is an abundant number, since it is smaller than the sum of its proper divisors (309766940).

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

247813480 is a wasteful number, since it uses less digits than its factorization.

247813480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6195348 (or 6195344 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 247813480 is about 15742.0926182004. The cubic root of 247813480 is about 628.1185828243.

The spelling of 247813480 in words is "two hundred forty-seven million, eight hundred thirteen thousand, four hundred eighty".