8549140 has 12 divisors (see below), whose sum is σ = 17953236. Its totient is φ = 3419648.

The previous prime is 8549137. The next prime is 8549153. The reversal of 8549140 is 419458.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1726596 + 6822544 = 1314^2 + 2612^2 .

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, 213709 + ... + 213748.

It is an arithmetic number, because the mean of its divisors is an integer number (1496103).

Almost surely, 2^8549140 is an apocalyptic number.

It is an amenable number.

8549140 is an abundant number, since it is smaller than the sum of its proper divisors (9404096).

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

8549140 is a wasteful number, since it uses less digits than its factorization.

8549140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427466 (or 427464 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 8549140 is about 2923.8912428474. The cubic root of 8549140 is about 204.4752791219.

The spelling of 8549140 in words is "eight million, five hundred forty-nine thousand, one hundred forty".