3869388 has 36 divisors (see below), whose sum is σ = 10297560. Its totient is φ = 1221696.

The previous prime is 3869351. The next prime is 3869399. The reversal of 3869388 is 8839683.

3869388 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2145 + ... + 3512.

Almost surely, 2^3869388 is an apocalyptic number.

3869388 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

3869388 is an abundant number, since it is smaller than the sum of its proper divisors (6428172).

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

3869388 is a wasteful number, since it uses less digits than its factorization.

3869388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5686 (or 5681 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 3869388 is about 1967.0760025988. The cubic root of 3869388 is about 156.9931704874.

It can be divided in two parts, 38693 and 88, that added together give a triangular number (38781 = T₂₇₈).

The spelling of 3869388 in words is "three million, eight hundred sixty-nine thousand, three hundred eighty-eight".