3840340 has 24 divisors (see below), whose sum is σ = 9217152. Its totient is φ = 1316640.

The previous prime is 3840329. The next prime is 3840349. The reversal of 3840340 is 430483.

3840340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3840340² = 29496422631200, which contains 22 as substring.

It is a nialpdrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3840349) 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 7 ways as a sum of consecutive naturals, for example, 13576 + ... + 13855.

It is an arithmetic number, because the mean of its divisors is an integer number (384048).

Almost surely, 2^3840340 is an apocalyptic number.

It is an amenable number.

3840340 is an abundant number, since it is smaller than the sum of its proper divisors (5376812).

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

3840340 is a wasteful number, since it uses less digits than its factorization.

3840340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27447 (or 27445 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 3840340 is about 1959.6785450680. The cubic root of 3840340 is about 156.5993272291.

The spelling of 3840340 in words is "three million, eight hundred forty thousand, three hundred forty".