247842260 has 12 divisors (see below), whose sum is σ = 520468788. Its totient is φ = 99136896.

The previous prime is 247842247. The next prime is 247842277. The reversal of 247842260 is 62248742.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 177315856 + 70526404 = 13316^2 + 8398^2 .

It is a super-2 number, since 2×247842260² = 122851571683815200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 247842260.

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, 6196037 + ... + 6196076.

It is an arithmetic number, because the mean of its divisors is an integer number (43372399).

Almost surely, 2^247842260 is an apocalyptic number.

247842260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

247842260 is an abundant number, since it is smaller than the sum of its proper divisors (272626528).

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

247842260 is a wasteful number, since it uses less digits than its factorization.

247842260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12392122 (or 12392120 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 35.

The square root of 247842260 is about 15743.0067013897. The cubic root of 247842260 is about 628.1428975536.

The spelling of 247842260 in words is "two hundred forty-seven million, eight hundred forty-two thousand, two hundred sixty".