8634140 has 12 divisors (see below), whose sum is σ = 18131736. Its totient is φ = 3453648.

The previous prime is 8634139. The next prime is 8634161. The reversal of 8634140 is 414368.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215834 + ... + 215873.

It is an arithmetic number, because the mean of its divisors is an integer number (1510978).

Almost surely, 2^8634140 is an apocalyptic number.

It is an amenable number.

8634140 is an abundant number, since it is smaller than the sum of its proper divisors (9497596).

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

8634140 is a wasteful number, since it uses less digits than its factorization.

8634140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431716 (or 431714 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 8634140 is about 2938.3907160213. The cubic root of 8634140 is about 205.1507120950.

The spelling of 8634140 in words is "eight million, six hundred thirty-four thousand, one hundred forty".