3850440 has 64 divisors (see below), whose sum is σ = 12605760. Its totient is φ = 933120.

The previous prime is 3850421. The next prime is 3850459. The reversal of 3850440 is 440583.

It is a happy number.

3850440 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3850421) and next prime (3850459).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 3850440.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139 + ... + 2778.

It is an arithmetic number, because the mean of its divisors is an integer number (196965).

Almost surely, 2^3850440 is an apocalyptic number.

3850440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3850440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6302880).

3850440 is an abundant number, since it is smaller than the sum of its proper divisors (8755320).

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

3850440 is a wasteful number, since it uses less digits than its factorization.

3850440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2942 (or 2938 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 3850440 is about 1962.2538062137. The cubic root of 3850440 is about 156.7364911831.

The spelling of 3850440 in words is "three million, eight hundred fifty thousand, four hundred forty".