548686340 has 12 divisors (see below), whose sum is σ = 1152241356. Its totient is φ = 219474528.

The previous prime is 548686337. The next prime is 548686403. The reversal of 548686340 is 43686845.

It can be written as a sum of positive squares in 2 ways, for example, as 277688896 + 270997444 = 16664^2 + 16462^2 .

It is a junction number, because it is equal to n+sod(n) for n = 548686291 and 548686300.

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, 13717139 + ... + 13717178.

It is an arithmetic number, because the mean of its divisors is an integer number (96020113).

Almost surely, 2^548686340 is an apocalyptic number.

It is an amenable number.

548686340 is an abundant number, since it is smaller than the sum of its proper divisors (603555016).

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

548686340 is a wasteful number, since it uses less digits than its factorization.

548686340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27434326 (or 27434324 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 44.

The square root of 548686340 is about 23424.0547301273. The cubic root of 548686340 is about 818.6684417332.

The spelling of 548686340 in words is "five hundred forty-eight million, six hundred eighty-six thousand, three hundred forty".