8378540 has 12 divisors (see below), whose sum is σ = 17594976. Its totient is φ = 3351408.

The previous prime is 8378521. The next prime is 8378561. The reversal of 8378540 is 458738.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 8378540.

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, 209444 + ... + 209483.

It is an arithmetic number, because the mean of its divisors is an integer number (1466248).

Almost surely, 2^8378540 is an apocalyptic number.

It is an amenable number.

8378540 is an abundant number, since it is smaller than the sum of its proper divisors (9216436).

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

8378540 is a wasteful number, since it uses less digits than its factorization.

8378540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418936 (or 418934 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 8378540 is about 2894.5707799258. The cubic root of 8378540 is about 203.1060136889.

The spelling of 8378540 in words is "eight million, three hundred seventy-eight thousand, five hundred forty".