4086388 has 12 divisors (see below), whose sum is σ = 7325892. Its totient is φ = 1993280.

The previous prime is 4086377. The next prime is 4086403. The reversal of 4086388 is 8836804.

It can be written as a sum of positive squares in 2 ways, for example, as 1304164 + 2782224 = 1142^2 + 1668^2 .

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, 12295 + ... + 12622.

It is an arithmetic number, because the mean of its divisors is an integer number (610491).

Almost surely, 2^4086388 is an apocalyptic number.

It is an amenable number.

4086388 is a deficient number, since it is larger than the sum of its proper divisors (3239504).

4086388 is a wasteful number, since it uses less digits than its factorization.

4086388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24962 (or 24960 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 4086388 is about 2021.4816348411. The cubic root of 4086388 is about 159.8747457216.

The spelling of 4086388 in words is "four million, eighty-six thousand, three hundred eighty-eight".