3440406 has 32 divisors (see below), whose sum is σ = 7338240. Its totient is φ = 1072224.

The previous prime is 3440399. The next prime is 3440413. The reversal of 3440406 is 6040443.

It is an interprime number because it is at equal distance from previous prime (3440399) and next prime (3440413).

It is a super-3 number, since 3×3440406³ (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 11596 + ... + 11888.

It is an arithmetic number, because the mean of its divisors is an integer number (229320).

Almost surely, 2^3440406 is an apocalyptic number.

3440406 is an abundant number, since it is smaller than the sum of its proper divisors (3897834).

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

3440406 is a wasteful number, since it uses less digits than its factorization.

3440406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 3440406 is about 1854.8331461347. The cubic root of 3440406 is about 150.9627848583.

Adding to 3440406 its reverse (6040443), we get a palindrome (9480849).

The spelling of 3440406 in words is "three million, four hundred forty thousand, four hundred six".