247628260 has 48 divisors (see below), whose sum is σ = 573713280. Its totient is φ = 89027840.

The previous prime is 247628207. The next prime is 247628261. The reversal of 247628260 is 62826742.

247628260 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×247628260² = 122639510301255200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (247628261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13257 + ... + 25903.

It is an arithmetic number, because the mean of its divisors is an integer number (11952360).

Almost surely, 2^247628260 is an apocalyptic number.

247628260 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 247628260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286856640).

247628260 is an abundant number, since it is smaller than the sum of its proper divisors (326085020).

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

247628260 is a wasteful number, since it uses less digits than its factorization.

247628260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12756 (or 12754 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 247628260 is about 15736.2085649625. The cubic root of 247628260 is about 627.9620549916.

The spelling of 247628260 in words is "two hundred forty-seven million, six hundred twenty-eight thousand, two hundred sixty".