3885390 has 48 divisors (see below), whose sum is σ = 10546848. Its totient is φ = 990528.

The previous prime is 3885379. The next prime is 3885403. The reversal of 3885390 is 935883.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1132 + ... + 3008.

It is an arithmetic number, because the mean of its divisors is an integer number (219726).

Almost surely, 2^3885390 is an apocalyptic number.

3885390 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3885390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5273424).

3885390 is an abundant number, since it is smaller than the sum of its proper divisors (6661458).

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

3885390 is a wasteful number, since it uses less digits than its factorization.

3885390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1913 (or 1910 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 3885390 is about 1971.1392644864. The cubic root of 3885390 is about 157.2092898964.

It can be divided in two parts, 388 and 5390, that added together give a triangular number (5778 = T₁₀₇).

The spelling of 3885390 in words is "three million, eight hundred eighty-five thousand, three hundred ninety".