3868540 has 24 divisors (see below), whose sum is σ = 8749440. Its totient is φ = 1428288.

The previous prime is 3868517. The next prime is 3868541. The reversal of 3868540 is 458683.

3868540 = T₃₁₂ + T₃₁₃ + ... + T₃₇₆.

It is a junction number, because it is equal to n+sod(n) for n = 3868496 and 3868505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3868541) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7180 + ... + 7699.

It is an arithmetic number, because the mean of its divisors is an integer number (364560).

Almost surely, 2^3868540 is an apocalyptic number.

It is an amenable number.

3868540 is an abundant number, since it is smaller than the sum of its proper divisors (4880900).

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

3868540 is a wasteful number, since it uses less digits than its factorization.

3868540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14901 (or 14899 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 3868540 is about 1966.8604424310. The cubic root of 3868540 is about 156.9817009789.

The spelling of 3868540 in words is "three million, eight hundred sixty-eight thousand, five hundred forty".