8938140 has 48 divisors (see below), whose sum is σ = 25159680. Its totient is φ = 2370880.

The previous prime is 8938129. The next prime is 8938157. The reversal of 8938140 is 418398.

It is a nialpdrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18421 + ... + 18899.

It is an arithmetic number, because the mean of its divisors is an integer number (524160).

Almost surely, 2^8938140 is an apocalyptic number.

It is an amenable number.

8938140 is an abundant number, since it is smaller than the sum of its proper divisors (16221540).

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

8938140 is a wasteful number, since it uses less digits than its factorization.

8938140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802 (or 800 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 8938140 is about 2989.6722228365. The cubic root of 8938140 is about 207.5307159252.

The spelling of 8938140 in words is "eight million, nine hundred thirty-eight thousand, one hundred forty".