3888390 has 32 divisors (see below), whose sum is σ = 10181376. Its totient is φ = 942560.

The previous prime is 3888389. The next prime is 3888397. The reversal of 3888390 is 938883.

It is a happy number.

3888390 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3888397) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 5562 + ... + 6221.

It is an arithmetic number, because the mean of its divisors is an integer number (318168).

Almost surely, 2^3888390 is an apocalyptic number.

3888390 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3888390 is an abundant number, since it is smaller than the sum of its proper divisors (6292986).

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

3888390 is a wasteful number, since it uses less digits than its factorization.

3888390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11804.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 3888390 is about 1971.9000988894. The cubic root of 3888390 is about 157.2497411370.

It can be divided in two parts, 3888 and 390, that added together give a triangular number (4278 = T₉₂).

The spelling of 3888390 in words is "three million, eight hundred eighty-eight thousand, three hundred ninety".