3851040 has 96 divisors (see below), whose sum is σ = 12410496. Its totient is φ = 1003520.

The previous prime is 3851017. The next prime is 3851041. The reversal of 3851040 is 401583.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 3850998 and 3851016.

It is not an unprimeable number, because it can be changed into a prime (3851041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34024 + ... + 34136.

It is an arithmetic number, because the mean of its divisors is an integer number (129276).

Almost surely, 2^3851040 is an apocalyptic number.

3851040 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 3851040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6205248).

3851040 is an abundant number, since it is smaller than the sum of its proper divisors (8559456).

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

3851040 is a wasteful number, since it uses less digits than its factorization.

3851040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202 (or 194 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 3851040 is about 1962.4066856796. The cubic root of 3851040 is about 156.7446319853.

The spelling of 3851040 in words is "three million, eight hundred fifty-one thousand, forty".