3440028 has 24 divisors (see below), whose sum is σ = 8119440. Its totient is φ = 1133440.

The previous prime is 3440011. The next prime is 3440029. The reversal of 3440028 is 8200443.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 3439986 and 3440013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3440029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 543 + ... + 2678.

It is an arithmetic number, because the mean of its divisors is an integer number (338310).

Almost surely, 2^3440028 is an apocalyptic number.

It is an amenable number.

3440028 is an abundant number, since it is smaller than the sum of its proper divisors (4679412).

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

3440028 is a wasteful number, since it uses less digits than its factorization.

3440028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3317 (or 3315 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 3440028 is about 1854.7312473779. The cubic root of 3440028 is about 150.9572558575.

The spelling of 3440028 in words is "three million, four hundred forty thousand, twenty-eight".